tl;dr Case Club full size case is Great, would buy again.Their customer service did right by me no questions asked. It isn't really that heavy IMO, loaded up it is lighter than a Pelican 1510 case
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I have the big one. Case Club was awesome, too. I ordered it from Amazon Warehouse Deals, and I got a P3 case. The
p4p fit but the battery cutouts obviously were wrong. There was a biz card in the case so I figured I'd give them a ring. Even though it was quite possibly not their fault (being Amazon Warehouse Deals they weren't actually the seller and it may have been Amazon's fault!) but they immediately shipped me out a brand new one of these and sent a call tag to send the P3 case back after I got the P4 case. Maybe they can introduce this concept of "Cross Shipping" to DJI support!
I've got a couple of Pelican's, I use 17" laptop Pelican 1495 case for my Mavic (if I ever get it back from said DJI Support..) with a full iPad mount i built into the case, and a 1510 for misc stuff like FPV goggles, DSLR + tripod, etc. As a note, even without the DSLR, the 1510, which is probably about the size of the compact Case Club case, is noticeably heavier than the fully loaded Case Club large P4 case.
I personally like the exterior finish of the Pelican's a little better than the case club plastic, but that's a SMALL criticism. Otherwise the Case Club's are great and much more cost effective - The inside is great, plenty of room to work with it, the larger size makes it quite useful as a launch pad (I don't try to land on it though ... dropped my Mavic off the side of the 1495 once trying to land on it!), I use the wheels and they work well, cutouts fit the drone and batteries well, and I like the extra space inside of the case for keeping my ND filters, log book, props, etc. The only thing I can't fit in the Case Club case is the Hoodman iPad two part sun shade.
Aaaaanyways