Amazing piece of equipment and can be used in so many different ways that I'd say most people would benefit in having it in their setup.
It's of course one of the best / most powerful and versatile samplers if you want to make sequencer based music, or "beat shit" but that's not how I use it at all, despite it probably being the intended way. I use it as a 4-channel performance mixer, with the added benefit of being abled to sample any sound for up to 8 minutes and playing it back. I don't really do a lot of sample chopping or editing, although it has a very powerful engine for that.
The way I use it:
2 channels for Digitakt in stereo (those that don't know, the little brother of Octatrack. Sampler geared towards drums altho it's almost as capable as a general use sampler as Octatrack)
1 channel for MS20
1 channel for any 3rd device i want to use, drone synth or contact mic for example.
3 channels for samples
1 channel as master channel
the 3 sample channels can either play pre-recorded, longer samples, be used as a tape loop style of looped 16 or 24-bars from any of the input channels (or multiple channels), which records itself over every cycle unless i freeze it.
I have most of the shorter samples I use on the Digitakt due it's more intuitive UI with Octatrack mostly handling longer, droning backround samples or live sampling. I have the digitakt sequencer running MS20 in midi, and the octatrack giving master clock to the digitakt. This way everything is nice and synced and I don't need to use the octatrack sequencer for intricate patterns, just make sure every channels is running and program patterns with the digitakt.
It's very hard to get into, but once you unlock even a part of its potential like i have you can't really make any other piece of gear do the same things.
With a Zoom h4N, i can record everything I do directly into it and make as intricate music as I want to without a DAW. Perfect setup at least for me, and not terribly expensive either. Just a newer model macbook is almost as expensive as my gear.