Case received and water tested. I've not tried a call with it yet, just playing some tunes. No distortion and volume is decent. Finger print recognition flawless so far. I'm going to have to remove my glass screen protector if I want it to be waterproof. O ring is definitely in conflict with the screen protector. I'll do this once I'm sure I'm keeping it. It will snap together with my glass screen protector in place, however.
I've been using the Redpepper for the last couple of months and it is, quite frankly, a very good waterproof case for $15.00. The build quality is very similar between the two. I think the Redpepper is a good alternative for those people who are looking for an occasional waterproof case. It does have some limitations. The plugs for the headphone jack and lightning port are a one piece rubber gasket held in with one tiny rubber plug that easily comes out and is a PITA to get back in. The frame prevents access to the alphabet when on the contact screen in phone mode. The nuud allows this access.
I find the nuud to be very similar to the version for the 5. I work on the water everyday during the warm months and need something that can handle getting wet without worries. I'm not a fan of the fre. I'm hoping I'll be happy with it.
So far, I'm leaning towards keeping it.