How does it feel? What are some first impressions?
It's pretty good. Not slow. Controls are a bit cramped, and a few UI hoops I don't prefer, but the performance seems fine so far. I expect it to be a fine scope, as you'd expect from a Tek.
I think in the end the only thing it will come down to is is it good value for money. If you are just after a scope, then of course it's likely a big no, the SA just adds so much base cost that they just can't compete in that area. But if you value the SA built in, and can afford it (or are spending someone else's money) it's a fine scope.