For comparison, the first time experience on Amazon EC2 is much worse. I had tried to get a GPU instance on EC2 but couldn't reserve it (cryptic error message). Then I realized as a first-time EC2 user my default quota simply doesn't allow any GPU instances. After contacting support and waiting 4-5 days I eventually got a response my quota was increased, but I still can't launch a GPU instance... apparently my quota is still zero. At this point I gave up and found vast.ai. I don't know if Amazon realizes how FRUSTRATING their useless default quotas are for first-time EC2 users.
Custom models? Apart from the Big 3 (in no particular order):
...
Who are the big 3 in this context?
some use cases do so.
but if not there are much cheaper consumer GPU based choices
but then maybe you anyway just use it for 1-2 hours in total in which case the price difference might just not matter