From what Khertan has said, a number of the issues you have discussed with mcalendar are being worked on (grid, more detailed information, etc), some for the next version and some a little further down the line.

Other than mCalendar, I haven't found anything that suits my needs. But that's just my context. I don't use grid views very much (if I'm planning 2 days in advance I'm lucky!) so that was a non-issue, and the auto-sync combined with built-in alarms make it very useful (I use Google's calendar hosting at work for scheduling our technicians).