Looking to replace my garage door opener.

It's a Liftmaster, chain drive, probably about 15 years old.

Lowes Black Friday sale has this unit:

http://www.lowes.com/lowes/lkn?action=productDetail&productId=248754-38782-248754

It is regularly $248.

But on Black Friday it is $188.

Seems like a good deal....

Is it a good unit? Worth the price?

Oh, and most importantly, how easy is it for a DIYer to put it up??

Thanks for the input.

Here is a link that might be useful: Chamberlain Whisper Drive @ Lowes