Level is a pretty well designed product. Tried it briefly and I really did like it. My team was already using other communication tools (not Slack, but email and other options) and using Level might have become an eventuality if I or someone else on my team pushed for it harder.

That said, as someone who also creates and launch products, I think it's hard to MVP into a space like this. It's better to wedge yourself into some aspect of that space and eventually branch out once you have a paying user base that already likes your product.

Good luck on your next endeavour.