I've had my Mustang I for two years now and I really like it. It's been a great little practice amp and I even used at my eldest son's outdoor wedding this past August. Everyone said it sounded great but I felt it was lacking a little something and I was thinking about replacing it with a Mustang II. Well... the little Mustang was less than $100.00 new and I'd be lucky to get $50.00 for it, so I decided to have a little fun and mod it first (warranty be damned). I swapped out the little eight inch no-name stock speaker for a Jensen Mod 35 watt 10 inch speaker. Wow! What a difference! It sounds like a much bigger amp now. Now it's a Fender Mustang Mach-1!!! Pics to follow... I promise!