That is a really fine Box.
Every Unit in there is a fine Edition to almost every army list (at least at the moment) and the Character isn't unique.
You really could buy this Box 3 times for your army and do nothing wrong.
That fat cannon and the Terminators look great. GW really manages to create awesome miniatures, the differences to stuff ten years ago is really noticeable. The prices as well unfortunately
Prices have been more than doubled for some models. While you could argue with inflation, risen costs for materials and personnel etc, the prices have been raised more than inflation, and the most extreme example are some LotR-minis. The same moulds as almost twenty years ago when I came into the hobby. The same models, no changes, double the price.
Unfortunately so, but that is where these boxes shine as you can get up to a third off the usual price with all the units in this box being really solid.