My vaillantis came in in relatively good condition, and I've found them to be very undemanding, but this is probably because my water is very much to their liking right out the tap. The fish I got from Frank were even taking NLS pellets within days of being in the tank. A good sized group is roughly 5-8 specimens, as the females are the territory holders, and believe it or not, they do get into their little scuffles. One major issue I see however, is the very divergent water requirements between them and the CPD. CPD prefer cooler, hard water, while the samurai gouramis love it warm and very soft. They are perfect for blackwater setups, and make interesting tankmates for pangio loaches and microrasbora. Franks shipping rates are pretty standard, and I'd definitely recommend upgrading to overnight considering their relatively delicate nature. Thankfully he's local to me so I can arrange for pickups. As for comparing them to the regular chocolates, it is the general consensus the samurai are substantially easier to care for. In fact, I've had all three of my females lay eggs for me, and have had numerous males holding, but have unfortunately yet to see any fry.