we have two of these and I'd buy them again. we have them on timers which we adjust depending on the time of year. they are less expensive than other openers. they work pretty well and have held up for several years. you have to build your own door so must be handy. sometimes the string comes undone but is fixable. it can be challenging to set up how high and how low.....sometime the string wraps around the spool incorrectly....