I started buying Tykables Camelots about 3 months ago and I am very, very happy with them. They are quite possibly the best diapers I've ever worn. I find the hook & loop fastener a great alternative to the usual sticky tapes. These are particularly useful given the capacity/weight the diaper is capable of, as you can adjust/tighten the diaper endlessly. With sticky tapes, you only get one or goes to adjust at best. The fact that you get the hook & loop plus a plastic outer covering is just brilliant. These cost me around $4.90 a diaper, which is pretty exy but on par with diapers like Bambino Bianco Ultrastretch. Most other brands such as Rearz or TotalDry are $1.00-$1.50 cheaper, although these usually have much lower capacity..
Recently I wore these on a long drive and I went nearly 12 hours before a change. I think they were reasonably discrete under my loose-fitting shorts. At the last fuel stop, I did a huge pee and I was sure that I'd start leaking but the diaper took it all. Thankfully I was alone at the service station because after this the bulge at the front of the diaper wasn't being disguised any more. I walked around for 10 minutes to let the fluid contents settle down, after which it was safe to sit down and drive the final two hours without wetting the seats.
I also started using Tykables Dubblers at the same time and I am super impressed with these too - I only wear these at home as they're too bulky to fit under any pants I own. The initial thickness is cool but it's even better as the volume being absorbed increases - it's really quite remarkable how much the Camelots with a Dubbler will hold.
I began buying Rearz Incontrol Elite Hybrid diapers from the same distributor around four months ago. Everything I said about the Camelots applies to these - almost as brilliant but they are cheaper (at $3.63/diaper). Because of this last point I tend to buy and wear these slightly more than the Camelots.