I'm in the same boat. All I have been doing the past six months is researching the Katana.
At first, I found it impossible to believe it was anything other than a new digital toy.
The pricetag would suggest it is not a serious piece of gear.
Then... all the reviews started coming in. Nothing but high praise for it.
Granted, many of the reviews say "it's great.... for the price". Which can mean lots of things.
Other people have said it won't replace their precious "boutique" tube amps, but it's very good.
Some players have said they gig with it, and leave their tube amps at home now.
I have not had the opportunity to try it. So I cannot give you my opinion of it.
In about 3 weeks from now, I will have the head. I will post my thoughts after I spend
a few days with it. On paper... it should do everything I want it to do. And more.
The best advice anyone will give you is: go test it out at your local music store.
If you have no "local music store"... then you are in the same boat I am in.
What are your reasons for wanting it? What are your expectations? What gear do you currently have?
For me, it's a no-brainer. I fully expect I will be overjoyed with it. It is a huge upgrade from
what I currently practice with. ( A very old Roland Cube-30 )
I mostly want the Katana for the features and versatility aspect. It will be a new experience for me
to set up 4 separate channels, and then switch them with the foot controller. I have been wanting
to do that for years, but never had the gear to do it.
Bottom line is: The Katana looks like a legit deal. For the features and functions alone.
The fact that it sounds good too... is icing on the cake.