I just played around recently and I'm totaly impressed how easy it is to use.
Unfortunately I bought only one license. Hope that it will come back again some day.

My suggestions for improvement:
- I would be very interested in the white label. At the moment 199$ a year is a little expensive. That would mean that you need a lot of costumers to refinance this. Maybe better a onetime fee + 50$ a year.
- Roadmap for coming functions or discussion forum with votes
- Possibility to connect Amazon Affliates with automatically product updates
- more SEO features
- possibility to connect shortpixel or integrate an image optimizer
- disable "Powered by"