I have used this product to tilt back my combo amp on gigs for years. The amp is a Tech 21 Trademark 60, which is a similar size, to say, a Deluxe Reverb.
It is a very clever idea. Light, easy to transport, I keep it in the back of the amp, it folds flat.
When I fist saw it folded up, it looked like a brain teaser puzzle as to how it goes together. I got it wrong a couple of times, duh!, but after that, no problem at all.
Set up, it really looks like it won't hold the amp, but it does! It works.
The amp can tilt back forwards if it gets knocked or pulled by the guitar cable. Happened to me once, no damage, but the reverb made an almighty bang. I put something under the raised front of the amp, usually an old wah wah pedal, to prevent this and have never had another problem.
It's simple, effective and easy to carry. I'd get another if it got lost. Clever!