I'm a fan of big iron, however, the Mk V 25 is a great amp that can do an awful lot of things well. And it's light weight!
There are times we set an amp up, leave it that way, and forget about all of the wonderful things it's capable of just by working with it a bit.
If it was my amp, I'd put NOS tubes in it because I think that's something that makes long term ownership of an amp more satisfying, but that's just me.
You probably saw this demo before you bought the amp, but I'm posting it because 'how soon we forget'! It's an awfully good amp.
mesa mk V 25 demo