I moved to the e-motion after the iGlide was discontinued ( now produced as Tailwind https://livingspinal.com/power-assists/tailwind-power-assist-wheelchair/ ).

I've had my e-motions over FIVE YEARS and they still hold up.

The bad: The rims are coated, but know they are customized to affix to the springs in the wheel. About those springs, under day-to-day use they hold up well, but they break when manhandled like we typically do with our chairs. Replacing the springs, well pretty much any maintenance, is fairly technical and complex. Make sure you have someone who can do the maintenance.

The ugly: These jokers are HEAVY! If you are looking at them as a pop-on/off alternative to go between manual and powered, know that the mounts will add some weight to your chair. Oh, the mounts also mean you'll say adios to and camber. My minor annoyance is the indicator lights. They are REALLY BRIGHT and I've had too many folks ask about them, so i fixed it with electric tape. The electronics are complex and when mechanisms go glitchy troubleshooting is sometimes frustrating.

The good: The e-motion is a remarkable step forward in independence. I've seen a woman with extremely limited mobility propel her chair up a ramp with her fingertips. I prefer to do some work, but not be slowed down by hills or carpet. I can fly from sidewalk to grass with my dog on leash with remarkable ease. ( yes, i wrote remarkable again ). The wheels are smart enough to keep me from rolling uncontrollably down hill. With the dials ( you not really need to pay for the obnoxiously large controller but may find it more convenient ) I can go from my house to the city streets with a few clicks. Finally, we can switch out to my manual wheels within five minutes.

If you're looking for more independence but do not want to be constrained by the size of a power chair these are a wonderful option. For the stronger customer who just needs some help and tosses your chair around, consider the Twion or SmartDrive instead.