Which ones? the sound ones that go for around $20? I bought all of them for my son and one for myself (the falcon, TIE, black and regular X-wing, U-Wing). Of those, the TIE is pretty nice.
The regular Revell Star Wars kits are pretty nice. The only downside is that they are pre-decorated with no decals. My son and I built most of them. For the Force Awakens, we got the Kylo Ren command shuttle and Poe's X-Wing. These are good model kits. I wish the X-Wing came with a pilot and that the command shuttle wings tilted like in the movie.
Unlike the Bandai kits (and Fine Molds kits) that came in "standard" model scales of 1/144, 1/72, 1/48, the Revell kits are box scale without regard to one another.