I have been using hma for a while but I switched to nordvpn. The main thing why I did this is that they accept torrents and I can easily download from the pirate bay and you cannot do that in other vpns. What's more other websites uses some kind of low-end solutions which drops packets and the connection is unstable. These guys use Vyatta which is a very powerful tool for managing networking. I asked the guys about udp ports and they responded me quickly and in a very professional way, highly recommended service.