The advertised speeds are the maximum that may be obtained. Bear in mind that these speeds are advertised in bits, not bytes, so eight times slower than you might expect if compared with computer disk read/write speeds. 15mb/sec is adequate for most people and with 100GB/month data cap, you won't be streaming HD movies 24/7. In the absence of any better alternative, it seems the only way of getting any type of decent internet speed, for a price!