Been using Ubuntu professionally since 2004. I upgraded to 12.04 from my 10.04 since then, I installed that sort of "Ubuntu Store", and out of curiosity I run it form time to time. I end up using Synaptic 99% of the times.
But the worst thing about it is when I try to enable "Recommendations" and it starts dragging CPU and failing miserably, apparently in an attempt to show a "Captcha".
Why does it keep freezing?