Reports UIv4 are difficult to use

I will just say my most scathing summary up top, then I will drill into an example: I do not believe Reports UIv4 should even be in production. It is that problematic.

• I wanted to make an ad hoc Interface Bandwidth report for the last 30 days
• After laying out my params, I clicked SAVE.
• LM proceeded to run the report, even though I ONLY HIT SAVE
• It was a lot of data, so I had to wait 5-10 minutes even though I DID NOT RUN IT
• LM didn't send any CSV to me anywhere, nothing happened.
• I was still on the edit form with SAVE and SAVE and RUN greyed out
• I tried to leave the page, it wanted me to click continue to quit.
• I did so, and my report wasn't saved!!!!!!
• I repeated ALL of the above but did SAVE and RUN.
• I had to wait 10 mins again, nothing happened. No explanations.
• I closed the browser fully, came back and my report HAD been saved.
• I clicked on MANAGE and LM tried to RUN the whole report before letting me manage it.
• I closed my browser because I didn't want to wait 10 minutes.
• I went back to the reports page, clicked PLAY and it told me it was running already and asked for email
• About 30 minutes later it was never sent.
• But in the mean time, I repeated ALL of the above under a new report LM didn't think was still running. Because I didnt want to wait for it to run for 10 mins just to manage it.
• I experienced ALL of the above again.
• At some point, I clicked manage to change it to a scheduled report, it tried to PLAY it to show results before presenting manage. I wanted 10 minutes and FINALLY got to the manage page
• I switched it to scheduled. I clicked SAVE. I forgot that my changes sometimes aren't saved unless I do the other option.
• Somehow I got back to that state where I couldn't leave the page without losing my changes EVEN THOUGH I had clicked SAVE because it thinks I have pending changes, but SAVE and SAVE and RUN are greyed out.
  
  

Here is the final state. I'll just stop there.

How is the Reports section even usable in UIv4. I never under any circumstances want a report to play when I'm just looking at it, managing it, or even when browsing to it in the report list. Its terrible when debugging a report that is being painful for LM-limitation reasons.

I get similar complaints from users on this or other problems. The only person in our org who likes UIv4 doesnt ever use the product, he just looks at it occasionally.

The whole reports UIv4 needs to go back to formula.