Summary: I installed four of these speakers in my medium sized kitchen. They capable of playing far louder than they need to. The sound clarity is wonderful, even at high volumes. I'm very happy with my purchase. However, you should not expect these speakers (or any speakers for that matter) to deliver adequate bass if you listen to bass heavy music by themselves - for that, you will want a sub woofer to supplement.
Summary: These speakers are amazing and really the price is unbeatable. They are super easy to set-up. I purchased 3 sets of these to distribute among my house that was originally pre-wired. The directions are super easy to follow. These speakers are not heavy so there is no sag in the drywall. The only reason I gave these 4 stars is because they do not pound like a bigger speaker would. But I knew this before purchasing them.
Summary: I am only using these for rear surround and they sound fantastic in that capacity. I'm sure they can handle lots more volume. On reason it gets 4 stars is t hat the screens are the type with tiny holes which makes them hard to paint. The paint tends to fill a lot of the holes and looks bad. Nothing 30 minutes with a toothpick won't solve or maybe use spray paint.
Summary: I am using them as rear surround speakers with my Yamaha RX-V673 7.2-Channel Network AV Receiver. Sound issue what so ever. Installation was easy, just make sure you cut the hole to the right size the first time, they are not easy (not too hard) to get out of the ceiling once installed.