I have one. I shave with a regular SR fairly often. I find the Magic very difficult to shave with compared to a SR. They are exceptionally light (I tend to prefer quarter to half hollow ground SRs), the tang seems way too long (I normally use the heel for a good bit of the shave), and they have no jimps. I also find it awkward to grab by the shoulder. I mainly use mine for lining up my sideburns or for a quick touch up if a SE/DE shave doesn't get to BBS.
If you plan on shaving with it, I recommend going very slow and watching your blade angle. All of the issues above make it an entirely different beast compared to a regular SR. I've managed a decent shave with mine, but it isn't a regular part of my rotation.
I only use a regular SR now but I've had good luck using Personna Blue blades in the magic razor I still have. They have those blades online or at Sa!$y's supply.