Can this be good first tube amplifier?

Don’t listen to all the elites!  As a first tube experience, Yaqin is great.  I had a tube line stage preamp and it was really fun to roll with it.  I’d suggest you start with just a preamp as then you don’t have the variable of the power stage tubes which are also generally more expensive.  Beware - you’ll have a lot more tube gear and a big box of tubes if you get into this!