As long as it's intended use is as a centre, it will be great! 7.1s are great speakers, and more flexible than the 4 but the 7.4 is without question the better dedicated centre.
The alt works a treat!
Also, in my humble opinion, it looks much better on the motor floor stand and does a better job of hiding any cables...
It might be a 'crappy speaker for anything else', but by the same token a Ferrari is a crappy car for shopping... It was designed purely to be an amazing centre and does a great job. I'm sure you'll be impressed