Oh man I've had mine for I think a bit over a year now and I love it so much. It really builds off the fundamentals mentioned on the first page of this shared post: you jam out little riffs and then mix and match them till you get something you like. There have been many days/nights where I've needed to do some programming on my game and instead burn 3-4 hours without realizing it because I hit a groove. It's so conducive to jamming it's unbelievable. Not to mention Ableton is a really powerful piece of software that doesn't get in your way when you're experimenting. The pairing makes it one of my absolute favorite pieces of hardware (that and my OP-1).
I am scared to get the OP-1 because it looks like TOO much fun! Yes, I find myself jamming with the Push, not really making anything in particular. The scale mode helps me as I have little music training. Ableton simply works for me. I am using Push 2 + DDJ-SR / Serato and couldn't be happier. Although Serato has a LOT to be desired (pitch shift + fx + vst support), it just SOUNDS great.