It was Obamacare/ACA with a few tweaks, mostly bad ones. It reduced the low income subsidy, increased the age differential from 3X to 5X, and replaced the single/employer mandate tax penalty with an industry administered penalty applied at the time you reinsure.
It also repealed the net investment income tax, extra Medicare tax, and doubled the expense deduction cap for insurance executive pay from $500,000 to the first $1m. So that's, like, whatever. Republicans.
Basically, all of the complicated **** that made ACA a gong show is still there. It's going to make insurance more expensive for businesses and individuals. And it would cost the government even more money than ACA to implement this, a ****tier version of ACA.
23 million Americans would have lost insurance, mostly lower income old people (i.e. Republican voters).
Democrats didn't want it because, whatever, it doesn't matter what they think right now.
Radical right won't vote for anything short of full ACA repeal.
Moderates won't vote for something this ****ty.
Career Republicans won't vote for something that will get them crucified.
And that's why the bill died.
Edit: as for whether they "planned" for this to fail, no. Don't be ridiculous. ACA was originally a Republican idea. They spent the last 8 years *****ing about getting a fair compromise, and they've got zero ****ing alternatives to show for it. ACA + billionaire tax cuts. That's it. That's their genius ****ing idea. This is the best they could do.
If they wanted a spectacular public failure to iustify not working the problem anymore, they'd've put this to a vote on Monday and let their own party sink it in a huge public spectacle. Not quietly ditch the bill in a Friday news dump hoping it would blow over.