Personally I spent ages waiting for WaveMaker to move to 1.7 and start using dgrid. Before I gave up on WaveMaker and dojo toolkit in favour of other technologies.
After first glance it seems that Dgrid requires dojo framework which I have no interest to depend on and also provides too much functionality for us. Datazenit needs something simple, stable and extensible. Sensei Grid will definitely have just a tiny fraction of Dgrid features. If you need something fully featured and complex, then Sensei Grid is not for you and you should stick with Dgrid or any other alternative.
Nice. I wish more developers took this approach. I've lost count of how many times I needed some specific functionality (that was advanced/complex enough to make me not want to write it on my own) and ended up using a gigantic library that came with a gazillion other features that I never used.