chamberlain wd1000wf vs liftmaster 8550w

[jackal2001]

So we are going to replace are old doors and openers. Still deciding on the doors.
What is the difference between the above two models of openers? The only thing I can tell is that the chamberlain comes with more stuff in the box. It has an additional remote opener and they come with remote keypads and comes with the battery where the liftmaster doesn't???
Is there anything else different? Components, speed of the door, one rated better than the other, etc?
Since they will be installed by the installer doing the doors, I just want to make sure I'm getting the right openers. Wife wants battery backup, we both use homelink (have 2015 or newer cars), and the cell phone connectivity is nice.
Any pros vs cons of one over the other?

 

[kngelv]

Liftmaster's have one piece guide rails. This makes for a smoother and quieter operation. I'm in the garage a lot so I have a Liftmaster. The controls are pretty much interchangeable.

James

 

[jackal2001]

Thanks. I was googling and found the same info as well. I also found read that someone purchased a liftmaster from amazon and it didn't come with the battery. I'm hoping my installer gets one in there if that is the case.
I'd rather have a "better" product than more accessories, as they are not needed. We basically only use homelink and occasionally use the outside keypad in case of emergency where i lock myself out. (cell phone connection should also help with that)