Pros: Wow, these things sound a heck of a lot better than I thought they would. The tweeters can be angled to provide the separation you want, and the mids are pretty clear. Bass is okay for 6.5" speakers - I'm happy. They also install quite easily, and if you need to pull them out for some reason that's easy enough as well (hint: use a paperclip to remove the grill).

Cons: While they say they use the wall as a "virtual enclosure," don't believe it's going to sound like a sub - their bass response is decent but it's still a set of 6.5" speakers. Comparable to a good car system (without a sub). If I had to nit pick, the plastic legs that are used to secure the speaker in place could be a little more robust, but just the same they didn't break on me. Also, a lower profile design might be useful for some users (I didn't have a problem installing them in my dropped ceiling).

Overall Review: Works fine as a ceiling install. If you want really big bass sound, get an in-wall sub or similar - but try these out first as they're pretty effective just the same. I gave them 5 stars because I got something that sounds better than I expected!