I guess it's not for everyone, I love mine. I hate screen protectors but want my screen glass to be flawless. The flap protects my glass and also keeps face grease off the phone when you talk on it. The only downside of it on my S3 and Note 2 was that you had to open it every time the phone buzzed to see what it was. Now you can see/answer calls, read text messages, take pictures, play music, check time, weather, S health steps and all kinds of other stuff without ever opening the cover. I also like the added edge protection with out the bulk of a giant case.
The S3 and Note 2 flip covers weren't anywhere near as nice add this one. But the downside is that the flip part is so well made that you have to break it in for a while (hence the flap not staying closed). I use the hell out of mine so it's broken in now and the flap stays closed just fine.
Also, mine was only $45. You gotta know how to find the deals.