I was hesitant in buying these particular tuners as I couldn't find any reviews for this model, only the strat-style buttons, which I believe are an older product.
I needn't have worried, however. These were a direct fit replacement on my Mexican strat and it was the easiest upgrade I've ever done. They look perfect, and are a high shine chrome, which was just what I wanted.
As tuners, they are certainly an upgrade over the stock Fender tuners that came on the Strat. Hold time noticeably better both for general use and for a bit of extended whammy playing. They're not a replacement for a full locking system at the bridge and nut, of course, but do not come with the disadvantages of those systems. They are a worthy compromise on this front.
The best thing about locking tuners generally is the ease of changing strings. There is no need to wrap strings around the post, merely insert the string through, tighten the clamp, and tune up. These are no exception, and the parts are sturdy and effective.
I would absolutely recommend these and can think of no disadvantage in using these as an upgrade over stock nonlocking options.