Great product.
the Good
1. Can upload and download large files using link.
2. Can put your brand when sent or requested.
3. Can include a voice message when sent.
4. Links expire.
5. clean interface what you see is what you paid for.
6. Good download speed.
7. Has a preview screen of what is to be downloaded.
8. Can request client uploads with link. (note mail issue below)
Bad.
1. the emails I send out did not sent to me or my client. (note: it did work with the link.)
2. No password or security on send or recieve. (Please add to your list.)
3. missing details in the documentation. (new product...)
4. This is not a streaming service it is download / upload only.

I suggest getting Tier 3 has most features and storage for great price.
All in all I like it.