> - I don’t like the graphic design

Of the landing page or the product itself? The landing page is an easier fix :)

> - evaluating if this is good will take us more than a month

That's quite possibly true. Wikis take time to populate and only become useful if people commit to doing so. The problem is how to balance:

- Giving users time to evaluate the product

- Revenue

> - I’m worried about lock-in. If, after a few months I discover this isn’t for us, do I need to keep paying not to lose my data?

Valid point. I do plan to add a data export feature at some point. I'm wondering what the most useful format for such a thing might be. CSV? XML? JSON? SQL?

Conversely, I still haven't thought of a sane way to allow for a mass data import... but I'd like to.

I was talking about the graphic design of the product screenshots.

I'm personally not a fan of time limited trials -- I think feature or usage limits are better, especially when you don't have any users yet, and you need people to use the app and give feedback...

Currently the trial is limited to 5 users and something like 100MB of file storage. I was actually more worried offering a free-tier would result in people abusing the service (i.e., using it to store/share illegal stuff).

However, just between you, me, and the internet, I actually haven't enabled the logic to lock trial accounts out at 30 days. Because I'm still unsure about it.