I remember seeing a discussion about this in here. I don’t recall comments questioning their services outcomes. Can you delve in the aforementioned inefficiencies?
Personally I adopted this approach. I have a pretty unique identity therefore very finger-printable. I think it took me a year or more to have a lot of my internet services unsubscribed and DMCA. My data still available in the dark web, afaik there isn’t much that I can do to have it removed and I’ll have to live with that lesson. The work now is to contain the damage and not make myself more exposed in the future. PG helped me a lot in this journey. I still consider if I should additionally to the work that I’ve done get some data removal service. Pretty sure that I missed a bunch of things. The three services mentioned by the OP are looking good and I don’t know if in this case there is a gold standard like he is looking. I’d go with the more affordable probably. Please take in consideration that this is an opinion without much invested time and I don’t want to influence any decision on this matter.