The first thing I can say about this set is WOW! The bridge/command superstructure looks incredible, and was so fun to build. The entirety of the exterior looks like a UCS set, even with the turbolaser builds. I love the return of the synchronized turrets from the 2014 model. The hidden handle is nice in the fact that it can be hidden from view for display, and easily accessible for play. The interior has so many little details including (many) stickered details. The “holographic” table showcasing a battle is such a unique idea, and the small MSE droid hidden in the corner. The other battle displays are easily removable to create your own command center for play, which is such a cool thing. The bridge section at the front is tight, and is a little disappointing that you can’t have a figure standing in the middle while the ship is closed up, but it’s a sacrifice that I’m willing to take. The minifigures are top of the line. Vader having arm prints is great to see. The four unnamed characters are perfect for filling out the ship, and are excellent additions to any imperial armies. Commander praji was an interesting choice, but it’s good to have to different ranks for imperial officers. Cal Kestis being the 25th anniversary fig seems like a great choice, and I’m glad that he doesn’t have a large 25 print on his back like the 20th anniversary figs did. Overall, this set is the perfect mix of play and display, and even with the large use of stickers, it’s a fantastic set worth every penny.

75394 Imperial Star Destroyer is the latest in a long-running series of Star Wars capital ship playsets, which started with 6211 Imperial Star Destroyer in 2006.
However, this model is far more similar to 75055 Imperial Star Destroyer, released in 2014, given its accurate proportions and length of 46cm. The prior design was only slightly longer, at 50cm, but the functions and overall construction are near-identical between the pair.
This ISD is the smallest version yet, at 46cm (18″) long, while being the most expensive version yet.

Despite the reduced size, the interior is still relatively minifigure-friendly: all the minifigures can fit into the compartment and above picture are posed in athe exterior panels can close fully, which allows you to transport your Imperial minifigures around in this flagship vessel.

This new ISD version truly looks better thanks to new elements and modern build techniques. The design is tidier, especially now that most of the exterior is in uniform light grey (no more patches of dark grey), which helps it look closer to the UCS version and the in-universe capital ship.
The exterior has been tidied up since 2014, relying more significantly on accurate texture than patches of colour for detail. Similarly, the interior is better furnished, but 75190 First Order Star Destroyer remains superior inside.

This isn’t a set to buy for the minifigures. While the minifigs is OK for this playset, none of them stand out as unique enough to justify the purchase. Nobody wants to spens $$$ on Cal Kestis minifig. He’s 100% not worth it!

TLDR:
Pros:
• Impressive exterior
• Appealing functions
• Fantastic interior, on the whole
• Retains the best features of its predecessor
Cons:
• Limited innovation since 2014
• Mediocre minifigure selection
• Quite expensive

After years of waiting we finally have Cal Kestis! Stellar printing all-around. This will surely be sought after figure for years to come. Wish list items like his poncho and/or BD-1 are oddly missing, those are the only issue I have with it. Missing things aside, this is a top-tier minifigure for the year (up there with Malak, Thrawn and Ahsoka). If this set and Cal do well I could see us receiving another iteration of a Cal figure in 2025 perhaps in a battle pack form or maybe in a long awaited and highly desired Stinger Mantis build.

Really liked this Star Destroyer build more than I expected to and was very pleased with the finished product! Loads of details in intricate spaces helped make the build an enjoyable process and once completed it speaks for itself. The set displays very well and the interior boasts more details than I thought could be squeezed in to the smaller scale, but Lego really made it work and their effort should be applauded!

Overall; with the figure lineup, display quality and play features, this a better than expected set that I fully recommend. Price may be slightly high, but the only deduction for me is the omission of Cal’s poncho and his trusted pal BD-1

It is incredibly well-designed. The build process is easy and simple. The final build is extraordinarily sturdy, especially compared to past playset ISD's. You could hold this with one hand and swoosh it around: something impossible on the older ones. It is very stable and secure. The play features are well-made, making use of all available space: no area is 'wasted' in its design. Even the back of the command bridge opens up to store extra launcher projectiles or mini-figure accessories. The figure selection is good, all of them looking good or great.

Visually, it is very clean for a set of this size, looking very nice from almost any angle. It certainly looks a lot better in person than in photos.

In terms of price, if you account for inflation, it's actually rather affordable for a playset ISD. I don't see it as egregious or too much for a large playset, and with how well built it is on top of having great playability and good figure selection, I think it's well worth it if you can afford it.