Well mine are of the in ceiling variety, I have a pair of the Revel C383 in my livingroom and another pair in my basement. They've got directionally adjustable tweeters and 8 inch woofers for some pretty good low end coverage. I've got them housed in acoustic in ceiling boxes called the Dynamat "Dynabox" to help with the sound. I have no other experience with in wall stuff. So I honestly don't know how they compare to other mid range stuff. Obviously you can see from the Revel speaker line that it covers a pretty wide price range. I'm not sure what your friend wants to spend but I'm happy with mine and install was pretty easy, they've gotta really solid mounting system and the magnetic grill covers are really clean and hold tight.
I'm sure there are others here (
@displayname?) Who may have further suggestions?