Well, i have only played the map ones, but my first impression was really similar to yours in some aspects.
Speed boost should be removed from here, and maybe be replaced with a miniboss with some type of boost or a thick bush a la old TT top jungle.
The altars should be tweaked a little. Maybe reduce the bonus a little if you have both.
Vilemaw is great the way it is (in my opinion).
But there wasn't a lane phase at all. The map was really one fight after another, and particulary for me (i was playing Darius as jungler) it was 30% in the jungle, and the rest in fights in both lanes. Maybe it is because i was playing with people that clearly didn't know how to play classic 3v3 (they had less than 3 wins each), but this map feels a lot faster than previous TT (i had around 100 matches on the old map).
As i said before, i believe that, with some tweaks here and there, this map could be the balanced TT we were waiting for. I hope Riot listen to us and focus on solving the issues.