I agree – $150 would be worth it to figure out if mountain biking is something you’d enjoy doing. Modern suspension fork and shock will probably be a *lot* nicer than what is on there, but you can use that bike to figure out how you like that style of riding, etc.
Might just check that it’s not stolen. The OP seems to know remarkably little about the bike. (Apologies to the OP, who is probably not a thief. It’s just something I would check, the Internet and world being what they are.)
Okay, Bjorn. Standing offer of $150 if it’s a medium size frame and it’s not stolen. If you get a better offer elsewhere, sell it. Otherwise, my offer stands.