I have 3 doors with highlift tracks and for looks reasons I wanted a torsion opener of some type and only found two options the Idrive and the Liftmaster.
The company that sold/installed the doors for me was a liftmaster dealer and was trying to push that model to me obviously, and said that the idrive was junk and they would even void all warranties on my doors if I installed an idrive on them..
The liftmaster as great as it may be was actually not even an option once the installers came out and put the doors in. Because of there is not enough room between the door track/torsion bar and massive prelaminated beams that split the three bays and support the second story. (can see in pic below)
I read ALOT of bad reviews on the idrive, but I also read quite a few good ones. The main things I saw over and over again in the reviews that "seemed" to be the root of the problems were:
1) The door was too heavy such as solid wood doors, or was old/worn.
2) The door was improperly balanced.
3) If it was on a 16ft wide door the opener was mounted to far to one side which causes the one side to lift slighty before the other from the twisting of a bar that long and causes a jam (though WD states it can go anywhere on the bar)
4)There are to many fine details and adjustment for an everyday handy-husband type to install.
I figured I have wasted $250 on worse **** in my life, so with it being one of my only options I ordered 1 for now.
The install took a couple hours and it is definatly not a quick install. I see why installers hate them, because you have to adjust the side tracks, install nylon spacers on the guide wheels, cable slack retainer springs, opener disconnect cable/handle, do the calibration procedure and do the denton adjustments.
Luckily my doors were perfectly balanced (it would stay in any position with no lift or drop what so ever.)
I have had 1 of these installed for almost 1 year now and have not had a single problem. It gets cycled about 2-3 times everyday. Everyone comments on how it looks, how quiet it is, and how fast it is.
I'm 'almost' ready to buy the other 2 but am waiting a couple more months.
"IF" it works for many years you can't beat the package price, it included 2 car alarm type keyfobs, 1 wireless light, 1 outdoor number keypad opener, and the standard indoor wall controller.
The Liftmaster is probally a more dependible unit in the long run, but I didn't have the room for it.