I may have OP confused with another poster but...are you not the guy who is riding on platform pedals? If so, positioning of your feet on the pedals and securing them will have a yield both from performance and safety i.e. feet not slipping off the pedals during a sprint and descending. As far as tip over issues, that is a matter of practice must like learning to ride on two wheels only much easier.

The first PM I got was a power tap and I agree with the others with respect to performance and reliability but the moment I put the PT on the bike and started to get numbers, I regretted not getting a crank based power meter.

If you need pedals and want a PM, there are a lot of good power pedal alternatives and pedals can be moved from bike to bike and different wheels can be swapped on the bike and still have power. You may not need or want this type of solutions but my reason for calling your attention to this point is that there is a progression of actions that follow getting a PM. Generally, but not always, power data enlightens the cyclist and they think of new and interesting ways to use the data. A power hub embedded in a wheel has limitations that are soon realized. YMMV.