I've been using TranserChain intermittently over the past five or so months (got their other run on AppSumo). I've sent multiple file types (design and audio) with only DXF files not working, which they said are coming in an update.

As an environmental graphic designer, I often need to send massive print files for large displays to various vendors, many of which can exceed 1 or 2 gigs. Doing so securely, knowing they'll be deleted after a set period of time, and with limited hassle for nonaccount holders is vital. I had been using WeTransfer but opted to try TranserChain and I have zero regrets. No vendors have had any issues on their end either.

For a younger app, it worked well enough when I started, but they've been adding features and knocked out bugs rapidly. Support is responsive and the developers are keen on learning use cases in order to add appropriate features. Speaking of...

There are a few features (which they've heard me ask for a lot, haha) I'm hoping they'll add:
- Reminder emails about expiring files that haven't been downloaded yet being automatically sent to recipients
- Ways to store non-TranserChain user emails so I don't have to manually input them every time
- Confirmation email to me when a file has been downloaded by the recipient

Overall, I'm rooting for the team and hope they find their niche in a tough market. And if I had to say there's anything that I don't like, it's that if you erase your cookies... be prepared for a crazy authentication/recovery protocol. No one's hacking your password on this, which is great, but since I'm a designer, nothing I have on there is that important, haha.