Both of those testing sites report that I am connecting at HSPA+ speeds, and are both reporting very closely to each other. So I'm pretty sure that the speeds reported are accurate. With the "BandWidth" App it too had similar results. So there is three different sources saying similar things.
Another thing is, don't consider the "H" a bad thing, it generally means you have an excellent connection and fast internet. See and look for the question that asks what the G, E, 3G, and H icons mean. Most of us don't see that at all, which is an issue with the phone, one I can live with as long as I still get the faster speeds.
Microsoft Surface RT
Nokia Lumia 900