I use different ones for different stuff...
High gain / metal stuff (what I usually play) I use my Randall RG75G2 and I use this for practicing everyday as well... I'm buying a Randall RG50TC (Randall's all tube combo) soon too. Rock / anytime I go into the jammin' room I usually use my JCM800 w/ 1960 cab or my step dad's JCM900 w/ 1960 (I also use these when I feel like going deaf
On the note of your amp choice, I have a Marshall AVT50HX which I used to use to practice with (with a 1960) and it was OK... cleans were decent, nice and warm. Overdrive... warm, but sounded a bit fuzzy when you raised the gain up.
What's your total budget and what type of music are you looking to play? You could probably get a much better amp.
EDIT: Yikes, that's $1,149.98 + taxes if you're going new. Does it have to be a half stack? Like you could get like a Peavey 6505 combo for $100 more and it's much better. Or a used all-tube Marshall combo for less. They have speaker out as well, so if you decide you want the booming bass of a 4x12 later you can just plug it in lol.