Cant and won’t comment on any others but I will say Bristol are number 1.
I failed a few. Took 2 attempts to pass Met and PoF and 3rd for Gen Nav.
Went to 3 interviews and was never once asked of my results for ATPL's. All I was asked was about my CPL and IR attempts which I had passed both first attempt.
I had a mate who failed 6 out of his first 8 with Bristol about 7 years ago. He did all Mod 1 again and passed all again 2nd time around. He is now flying for a living. Don’t worry. Only advice is you should of gone Bristol Ground School as they know exactly what they are doing.