Had an MPA and sold it. The meters are purty. Not enough clean gain. Not true tube gear, but rather toob, or tewb as you prefer. What I mean is the design is what is politely called a hybrid, which means a solid state device with a starved plate trip through a light bulb to add what you hope will be some pleasant harmonic distortion. The cumulative effect of which over multiple tracks is the reason I sold it. True tube gear can be as clean as the finest solid state pres.
Still got a Toob MP. It occasionally sees action on bass guitar as a DI, or as a footstool for the leg I rest my guitar on.
-kent