Not as obnoxious as the 4000mah shell. Looks nice.

Does it have the flap cover or is that just an option?
Interfere with NFC?
How is the battery actually performing?

Looks decent enough for consideration.
Post some pics of it...

 

Did you receive the actual case, or just an email about the deal?

The grammar on the website is awful, because the deal is for Singapore only!

 

Here is the same case, and many more like it on eBay, looks like you over payed for it, big time 3200mAh Power Backup Extended Battery Case for Samsung Galaxy S3 SIII i9300 Blac | eBay

 

The case for the Hyperion is functional, provided you cut out the area around the buttons and USB. Easy to do and takes one minute or two. IMO, the case should have already been designed that way. Probably cheaper though to make as is.

I have had one dumb drop since using the case and the GS3 shows no damage. Case for $11 delivered has already paid for itself.

The noted case in this thread seems to add a lot more size, even compared to the 4000 mah Hyperion and case. Also notice the need to deal with the cover. Seems a better fit design for the Note phone or other tablets.

BTW, seems the material design could hinder the radios to some degree. Will be interesting to read reviews of results.

 

Guys check out mugen 4600mAh extended battery, it's superb!

 

isnt the output voltage a bit higher than the samsung wall charger? i would be kinda worried about using that with my phone...