I used this product when it first started up as remote winbox. The developer I worked with was a nice chap, honest in my opinion and was making a cool product. The only drawback from my point was that yes, one was trusting another third party provider. Much as one does with cloudflare with zerotrust ( irony for a name in this thread jajajaja ), or even Mikrotik with BTH!! The other concern was the SSTP connection was not using credentials. Not sure how they are handling customer connections now, hopefully there are more secure options. What I did like was the connection to my router from anywhere or any other router I was responsible for, FROM ONE LOGIN. I didnt have to login for each Wireguard connection for example. At the time they were just starting and were developing APIs, which I view as easy to configure solutions for common needs/services and thus the library was small but probably has expanded greatly.
Yes, overkill for my hobby limited needs. However, if managing multiple MT devices, including WIFI, this makes life super easy. The other thing I like which they did after I stopped using the service was partner with more enterprise security entities involved in miniminizing DDoS attacks at the earliest part of the travel of the attacks which is always a good thing.
In any case its a portfolio that keeps expanding, and recommend it for sampling to see whats out there…