I like it very much and use it with all Insta accounts. I had no problems at all with anything, such as loading time or delays. Everything works good. Support is very good and responsive.
However, I give 4 stars.
Why? Since this deal was here there are no updates at all. At least any visible ones. When I check Roadmap on Trello, there is not much happening, except many requests left without response.

Comparing to competitor here, Shorby has long way to go yet. I wish them good luck and hopefully they come up at least with simple features such as change fonts, fonts colour and so on. Not saying about other features such as embed email form forms, video....

Good luck