I use ETools and recently tried DM Familiar and DM Genie
I have mixed emotions about eTools but I'm definitely liking it more now that I downloaded ETHelper and about 50 or 60 other fan-created add-ons. Unfortunately, it doesn't help at all at the table and is still a far cry from what I was expecting from Master Tools.
I tried DM Familiar about a week ago and thought it was definitely a step in the right direction for at-table-assistance. Currently, our group uses a play mat and miniatures and it is taking a very long time to play out these battles. Since it is still very rewarding, I was looking for a way to speed this up. DMF definitely helps.
I downloaded DM Genie two days ago and just finished working through all the tutorials today -- and it is incredible!! I don't want to take anything away from DMF, but DMG does practically everything I wanted to do at the table. I have maybe a few small nits or requests for additional features, but these are really minor. If you haven't downloaded the demo yet, go do so immediately. You have 60 days to decide if you like it.
All in all, I'm still planning on trying some of the other packages listed on this forum before making my final purchasing decision, but I'm definitely happy to see all the various options. For all the software developers out there -- keep up the good work.