After trying Craze a year or so ago, it quickly became one of the best supplements I've ever taken, alongside Boldione and Slim Xtreme. I decided to sample all of the Dendrobium products I could find and rate them in terms of mental boost and energy.
Craze--The first and best. Immediate and sustained mental boost, plentiful energy, great mixability. It also didn't decrease in effectiveness over time.
Detonate--Worthy product. Took longer to kick in than Craze did, but they're pills. Also provided a noticeable mental and energy boost.
Game Day--Took the free sample the MAN folks were kind enough to send to me and was pleasantly surprised. Not as much of a boost in the mental and energy aspects as Craze, but the sample equalled half a serving, so I'm sure it will be even better with a full one. I ordered the 12-serving container a few minutes ago to try multiple doses. Not sure why GD gets as much negative feedback as I've seen because it doesn't deserve it, IMO.
Lipo-6 Unlimited--Surprisingly meh. Decent energy but negligible mental boost, and that was at the full dose of three pills.
B4--Even more meh. Only mild energy and mental boost, and a family member who tried it said as much.
I also tried SD Pharmaceuticals Dendrobium 600 and that didn't seem to do much, which suggests that Dendro works best in combination with the ingredients that are found in products like Craze, Detonate and Game Day.