Any use one of these computers? I pick one up a level 3 wireless probably the old model has 9 ****ions. I have wireless Trek incite8 I like on my bike now and wanted another for the new ride I have coming. I have had zero trouble with the Trek and it is dead accurate if you use the wheel rollout measurement. They don't make the incite 8 and this one has cadence also. I much prefer the wireless but I don't see many of these Serfas around. Could not find any real reviews as such.