There are handful of competitors out there; I've heard mixed things and am obviously very biased. They do handle some things better than us, but on balance I think our product is more battle tested and reliable.
We are also getting ready to roll out a very significant update to our underlying abstractions with the release of our developer API sometime in early 2023 that I think will put us far out and ahead.
If you're at the just getting started stage, I have no hesitation saying to go with us, we've got 20k other apps using RC today and another 200 going live every week. We won't charge you anything until your app makes $10k/mo.