I like it.
Me too. It also keeps quite well. I generally mix 500ml concentrate at a time and use that to make 500ml working strength developer which I save between sessions in an entirely full, glass bottle. After each session, I top up the bottle with some fresh developer, made with the concentrate and some water. The concentrate remains in the same 500ml bottle, which evidently empties out over time. Even in a partially full bottle, the concentrate remains usable surprisingly long. I just did some printing and noticed my concentrate bottle is now nearly empty; I mixed this batch a little over a year ago. I don't do silver gelatin a whole lot and most of the time, it's small prints, so I like a developer that lasts long, can be replenished, is cheap & cheerful to mix from generic materials etc. ID62 is one of the several formulas that works well in this regard. ID78 is also nice if you prefer warmtone.