I've been running the 1960AV cab for the last 2 years and it sounds stunning. I've used it with several different heads including my Marshall JVM410, Peavey 6505+, and Marshall JCM800. All I can say is that this cab is almost irreplaceable for me. The low end response is magnificent and carries a lot of those low end frequencies unbelievably well, but retains a real nice amount of the high end as well. Really dig the mid range as I can hear a slight 'honkiness' in the mids which I really dig for the music I play with one of my bands.
It's built incredibly solidly, but not got gonna break your back to move around and transport. And I find that the tolex is really high quality compared to some other cabs I've seen.