I recently purchased a Octatrack MK2. I am also beta testing Ableton 10.
The Octatrack, as mentioned, has limitations compared to Live, but that’s what makes it a great way to make music. I get things done quickly and find myself being far more creative due to the quick availablity of the settings. Hardware just encourages you to twist knobs.
However, Live 10 utilises the screen of Push 2 far more which makes the use of laptop screens less necessary. This leads to moments where the laptop really does become something on the background.
I’m bouncing between making tracks with Live and my Elektron boxes, and with Elektron boxes only. The intention is to perform some of my stuff; the Octatrack would be a great for doing this.
If it was one or the other . . . Well, Push 2 and live 10 will be a formidable combination. It will also be about the same price as an Octatrack. Plus, you need a good computer to run it on. However, if you only have one platform, I think Ableton is a terrific product with huge scope.
Perhaps this response reflects my inexperience with the Octatrack. Perhaps it reflects the fact I’ve been a Live user for nearly 12 years. I would love to become proficient enough with the Octatrack to move more into hardware but currently I find myself doing most things with help from the laptop and Ableton.
I hope this offers some help.