Pretty much what the title of the review says. I've only used the free option of the service and, just a few hours later, i'm sure that Mr Insta is rubbish. You're required to follow a minimum of 10 accounts to be able to unlock the 25 followers the free service guarantees. Some of the accounts I had to follow appeared to be somewhat genuine, but over half of them were either dead or were scam/spam profiles.
What's worse is the followers you earn, which are all crap. Dead profiles, fake ones, all of them of zero value. Hardly any of the accounts I got had content published, 1/4 didn't even have profile pictures, and the names were in most cases random strings of letters and numbers (one was even called fake_account_******* or something like that). And to top it off, the followers start to vanish just a couple of hours after you activate the service.