Honestly, anything that's new that is under $500 that has front and rear suspension is going to suck balls. I don't know much about MTB, but I do know that even for a decent new road bike you have to spend at least $600 for a super basic bike. I'm assuming it's about the same for a decent new hardtail MTB. Probably $1500 for a decent full suspension, but that's just me guessing. Don't cheap out, save up a bit and get one that's decent.