Have an upvote for actually sharing your experience/point of view.
I've also been trying inbox for a month now and I have your same feelings. It works ok and have very nice feature.
I really like the snooze button and the fact that overall it helps to keep the inbox clean from old email: if it's something that you are going to do in the future just snooze, if you have completed it click on "done". Of course this could be done in the old gmail/outlook, but here it's the whole point of the interface.
On the other hand, this means giving more data to google (can we possibly give more?) and the interface needs a bit of polishing, it needs time to get used to some changes with respect to gmail and, as usual, some features have disappears. Also I really don't like the fact that you have to use chrome, although with a little help from an user-agent switcher plugin you can use it on firefox (which gets me even more disappointed as there's no reason to restrict it only to google's browser).
Overall, I think there's good ideas and possibly the good stuff will flow back into gmail in the future.