Hey
@Jamie I started off with the free 'cooking' version,then went up a step when I ran out of room. Same thing again for the unlimited version.
Initially,I just needed s/c for storage,but a couple of years ago I discovered there is a great and very active community there,most open to collabs and the like. From that time on I did a lot more listening on the platform as well as posting up tracks.
The middle stage upgrade allows you to replace a track without losing the comments from those who have listened. I find this very useful,since I often fiddle with a mix after a song is posted,usually due to advice on this forum!
You get access to more stats too,but I take all that with a pinch of salt!
So,if you don't need the space,or need to replace tracks,than I'd stick with the free jobbie!
You can pay per month,then if you find it no use,you can opt out. Suck it and see.