I used SX5 plan. On this plan for 25$/month (or 45$/3 months) they only guarantee speed no more than 5 MB/s. If there was a little number seeders and a decent number of leechers, I had 5-5.6 MB/s (on Waffles, BMTV, BitMe, HDCLUB, PT, Freshon, HDT, BHD,
RevTT). The maximum speed that I achieved on
TL and What was 2-3 Mbps.
But it's on SX5 plan. If you'll choose SX10 or SX20 plans, your speeds should be 10-12 and 20+ MB/s respectively. You can read more reviews (in Russian, but including screens) on rutracker.
Also now they have a quite new attractive plan - EX20 - 1TB of disc space, speed up to 20 MB/s, unlimited torrents and dedicated IP for $30.