I am completely new to packing and binding, and Tranzwear is the first company I've ever ordered from, so I have nothing to compare against, but: I got a combo pack of pair of Snuggler cotton boxer briefs and a Sailor 5" from him (it's just one dude), and I am utterly delighted with the setup. For some of the underwear types, you can specify the pouch depth. I just placed a second order for more underwear, and this time I'm trying the Econo Snuggler boxer briefs, and I was able to specify where I want the pouch to go to. This is extra cool, because I'm six feet tall and the distance from my waist to my pubic bone is longer than a lot of guys'. If they're comfy I'm going to get the 3-pack next time.
I'm not sure what I'll do down the road when I get a Peecock, though. (I want one once I get used to packing and have a little extra cash.) I haven't really looked at the other TranZwear options, because I don't need that yet.
I'll also say that Den (TranZwear's owner) replies to emails extremely quickly, and he helped me figure out what would work for me without trying to get me to just buy the most expensive products. I also got a binder (6" black one), and it's extremely comfortable. (It's not a shirt-type one, though; Florida is way too hot for those.) He's having a sale right now, too... I'm not affiliated or anything, just a happy customer.