I’ve got both ableton and bitwig, and enjoy both programs.
The grid is both nice and frustrating for me to use. It’s very well made and sounds amazing, but so far I don’t think it’s possible to have more than one stereo output, I would like to have multiple outputs to be able to have multiple voices inside 1 patch and treat them individually mix wise. There’s no eq in the grid, you can of course use filters, but not really the same.
I was hoping to use the grid as some sort of modular daw, making algorithmic multi voice systems, and it’s definitely possible, but not having more outputs, not being able to host plugins and not having eq’s made it difficult for me to get it to sound like I had hoped. It’s incredibly nice though, and if I had focused on what it could do, instead of what it could not, I probably would have had more success 
I’ll be back in the grid sooner or later 
It’s still early days with the grid. I hope some of these things will get implemented.
Also, a midi grid would be super amazing. It’s almost the perfect sequencing environment to me. Lots of modular building blocks and very easy and fast to use compared to max.
Maybe some of these things have changed without me noticing since I’ve been using ableton for the last 6 months. Or maybe I’ve missed something in the manual, anyways, I like to switch between bitwig and ableton, both are nice and fun to work with 