I've now tested bugbears and borderlands a few times. My group has mostly played 5e, after a bit of editing this game has been very fun. It is quicker to play than standard 5e, characters come together faster, combat is a bit faster, but slightly more deadly. I wish I could get Izengrim and the creator of "into the borderlands" to team up on a new "B/X 5e" Izengrims simplicity combined with "Into the unknown" running the game book is, perhaps, better than playing 5e. In either case I've been using bb&bl as my intro to d&d game.

It's a great little system... purchased it for reference material as it is a solid system.