It definitely does need real care when learning how to use. I DID flip a machine down the stairs.

All weight needs to be balanced BEFORE engaging the motor. Bring the small feet down to contact the step, then STOP THERE. Then tilt the machine up and balance on the small feet, adjusting centre of gravity so that you can technically hold the escalera in place with one finger. THEN engage to motor to lift, and it glides up. No stress, no strain. If there are any large muscle groups being used you are doing it wrong.

This is bad information and untrue.

Perhaps I could make a video for you on how to use it correctly. Yes, you experienced all this difficulty using it, but that’s not necessary. Of course the right angle can be found on stairs. That’s how thousands of professional users do it all day every day.

But you really need help.

No it doesn’t. There is no lurching. There is no catching. The whole thing is balanced on the small feet *before* you engage the motor. Once the motor is working all should be smooth and easy.

Don’t worry too much about that. The battery doesn’t die suddenly. It just gets slower and slower, but you have full torque all the way. If the battery is close to dying halfway you just go back down the stairs.