I tried fuelgram and did two rounds. Lots of likes came in, but zero comments, didn't hit popular page and no traffic to my website. I found it a lot of work to do all the likes (I didn't want to pay for their liking service to start) and no conversions. Some of the accounts were really small (like 2,000 followers) that were liking my post, I have 37,000 followers. Don't know if that's effective. I don't like having to work in a schedule as well.
I'm in my first week with IG evolve, first day was good lots of likes coming in and hit the explore page twice. Slight uptick in traffic to my website and had a conversion of the items I posted and the sale has covered my first week of IG evolve. BUT, I did post once and got none of the powerlikes, emailed and it was something about resetting their server. I wish I had known because that photo looked silly next to my powerliked photos.