This is another "first time" for me, now with Sembo. This is a 2019 set that everybody and their mom have already reviewed, so this is just my overall impression and "feeling" about the set without too much details.
I always wanted something from this producer, as one of the major and well-known, oddly enough they don't have many sets that are appealing to me.
Except for their Wandering Earth series. I like it a lot, but most of the sets were too large and a bit expensive. This particular one I chose as a compromise between size and details.
Brick quality: I am not sure if 2019 Sembo already used GoBricks, but the pieces are really good. The injection points maybe too big on some, but given how tiled this model is it doesn't really matter. Colours are great and totally consistent.
Minifigs: absolute top. 360 prints, accessories, and stands that freakin' ROTATE. They are really made to feel like collectable.
And yeah, regarding collectables - you also get nice metal medal :)
Design: I am really, really impressed. This thing is so sturdy you can kill with it. Even some decorations are additionally strengthened so nothing major can fall off. Nevertheless, I'm not sure I like the removable roof. It has 2 parts and while one can be cleverly fixed, the other one has no fixation at all. The interiors are sure really nice, but I doubt I will be looking at them THAT often so I would prefer at least something to fix it in place (and I used spares to make it better).
Stickers: oh, those are made for torture. SO many. And many of them go over 2 pieces. There are even several for 1*1 tiles! And also the huge ones that are impossible to apply without some air bubbles, some dust particles and whatnot. Took me almost 10 hours to assemble the set because of the stickers :)
Instructions: easy to follow, but I would say they are clearly made for adults/more advanced builders.
Overall, I highly recommend this if you can find it, no missing pieces, great quality and design, nice minifigs. Just remember that this thing is HUGE. Even looking at official measurements I didn't get the impression of how big it will be IRL :)