Ditto, it sounds worse than it is. Two things that took some practice for me were the fairly short time to cycle on to off for modes (0.8 seconds or it locks in to that mode and will go back to off next turn) and the speed it goes through the brightnesses when setting levels. I would probably still be happy with the 1.2 second delay to allow you to cycle modes, but I don't miss much any more. The thing to remember is it only matters how fast you turn it back off after turning on to advance, you can leave it off between modes as long as you want, and it will come on to the next mode in the sequence. It only goes to "off" next once it has blinked to signal it is locked in a mode (after 0.8 seconds). After that you start from the top of the sequence for that User Interface.
Brightness setting is not described in much detail in the manual. When you hit that mode, and you must change to any other UI than #1 to have the option - then you can switch back to UI #1 if you like after setting, it will go through an automated sequence starting with one bright flash to signal it is about to set "low", and then you see the dimmest setting followed rapidly by the second dimmest on up to number 20, and then it will scroll back down from 20 to level 1, as I said, pretty quickly. At any point, you can turn the light off and it will be locked at that last brightness for "low", whether it was on the way up or down. To set "high", you have to start over and wait for it to go through all of the "low" options without selecting a new one. Then it will flash brightly twice to signal the start of "high" setting, which is just like "low" setting, turn it off at the level you want for "high" (interestingly, "high" can be lower than "low", if you prefer). The only problem I had at first was a tendency to be slow at the switch and get the level one past the one I was shooting for. Like everyone says, a little practice goes a long way toward having fun and taking full advantage of your new toy. BTW, I am only using level 2 and level 9 for my low and high, since burst is always lurking one twist away if needed. Hope this helps speed your learning process and ease the anxiety during the wait for delivery!