Cockos

I'm running it through Windows 10 on a really old and cheap Dell Optiplex 360 (which also cost about 60 bucks). It runs fine most of the time, the PC stuggles when pushed, not a fault of the software - I had it happen with other DAWs I was testing.

The video tutoirials are a real plus point for me. I just dip in to get the bit of knowledge I need - pretty comprehensive for a low level user like me.

Good native included plug ins and support for external so no problems on that score, unlike some other free/cheap DAWs.

Can't pick out any really 'unique' features. Does at least what other ones I tried. I looked at Ardour - both Linux and Windows, Studio One, Tracktion and one more whose name escapes me (sorry). Reaper is best for me by quite a way.

Test on a Kxstudio (with wine / wineasio) super stable, powerful, super, super easy to learn, super customizable. I use it for both dial / Laying out with VSTi for the pro record.

The doc is pretty full, but if you're familiar with Pro Tools, Cubase, Nuendo, Pyramix, Samplitude and so on, you can do without!

Side effect, it really is basic good reaXcomp is a good multi-band compressor, and allows reaverb, if you have good impulse responses (wav on the other hand), to have room reverbs quite realistic! After, if you have plugins like Altiverb, it's even better for sure, and will manage the Reaper carefree!
Ditto for virtual instruments, easily integrated, and very stable!

The strong points Reaper is:
1- it's all tracks (buses, midi instrument, audio, everything looks the same way!)
2- its customisabilité! You can really fit any workflow, it's just fun!
3- the price !! It's just 10 times cheaper than an equivalent market leader ...