I was very interested in the CLA 45 AMG until I saw it at the NY auto show this past year.
:
Didn't do it for me. The only thing I liked about the interior were the seats and gauges. Everything else I did not care for. Also, after closer inspection, the quad exhaust is actually a facade for dual exhaust pipes. Pretty lame IMO. Not sure if that was a pre-production thing or not but it looked cheap.
Plus learning that it's a Haldex based setup and not their true 4 matic was also a turn off.
However, for the price, if you keep the options down, it's not a bad deal.