Hi, I don’t have the Fun Factory Stronic real (your link goes elsewhere) but I do have the Fun Factory Bi Fusion Stronic and do not like it. You can read my review here therefore I have voted for the one I would pick from the others but I don’t actually have it.
Of the nipple toys I have the clover clamps, the DOMINIX pumps and the weighted clamps and of them have voted for the clover clamps because I love them - they do have a very fierce pinch though if you are not used to nipple play. The DOMINIX pumps just don’t have sufficient pump for me and the weighted ones would probably work well on larger boobs than mine but seem a bit ridiculous on a small chest. I am very intrigued by the vibrating suckers, they look a brilliant concept but very varied and contrasting reviews 
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