I use infinit a lot, every day. My favorite feature is the screenshot sharing: with a simple keyboard shortcut, you can share a pic of your screen. But the drag and drop feature from your explorer / finder is also a great way to quickly share any file.
What do you dislike?
Upload and downloads are pretty fast (especially compared to Dropbox) but just after an upload, it could take some time to get the resource online (up to 10sec sometimes).
Recommendations to others considering the product
You can override the default shortcuts in the app's preferences. I chose to keep Mac OS X default shortcuts Inifnit overrides.
What business problems are you solving with the product? What benefits have you realized?
I work a lot with developers, so I need to share renderings of websites from times to times. Infinit allows that very easily, without having installing anything on your colleagues' computers.
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