Sure, that helps! Personally I don't use IDE's since I'm already confused enuff by Windows, MASM, and Intel - don't need yet another package to get confused by. But I know a lot of people like them. jj2007's the expert; wrote the RichMASM editor, among other things; and if he's satisfied, so am I.
Looking around, I was not impressed with the existing IDE's available...
If you haven't already, check out EasyCode, RadAsm, WinAsm (not sure if RichMASM qualifies as an "IDE"). There are people here who like these and u could explain what's better/different about your approach. (One thing, they don't all support ML64). Of course u already have lots to do, just a suggestion for the future. But a basic feature comparison would be cool.
But, concerning extra features - I would much rather have a product that does what it does 100% reliably, than one that does 3 times as much 33% of the time
I admire your initiative, good luck!