I've bought the Stainless Refular Slinky because I had problems with nickle. Before put the Ernie Balls on I had the Daddario EXL110. Compared to the Daddarios, the Ernie Ball Strings are very very slippy and this doesn't go away after a time of playing. The sound is as good as the sound of the normal Regular Slinky. In my opinion, the Stainless Regular Slinky are good strings, but there are several other strings which are cheaper and better.
I'm not sure a review of guitar strings is really necessary as every guitarist has a personal preference. For me, when I play electric guitar, there is no other set which can hold a light to these. Always very satisfied with my purchase of these.