Pros: Finding a modem that will work with linux is a nightmarish task, but this one was plug and play! showed up in my debian install (pve-kernel-2.6.32-26) instantly as /dev/ttyACM0. Works flawlessly with HylaFAX and our fax to e-mail system.
Cons: Does not work with Windows 8. Another review response from Trendnet said they wanted to renew confidence in the product. After I contacted Trendnet, they just said it doesn't work. No responxe of we are working on it or anything positive.