I bought these as replacements for stock pickups in my mexico Standard Stratocaster.
They have a lovely high frequency shine that make them very present but still quite soft in the high mids. Sounds very sweet to my ear, especially the neck and mid pickups have that beautiful sizzle on the top.
Some people may find the bridge pickup a bit bright but i like the way it cuts through in an indie-rock setting. Like I said, it has a lot of presence but not too much harsh mids.
I should also mention that I play only with a cleanish/crunchy sound through a small tube combo which in itself compresses and smoothes out the high end somewhat. In that context it works very well for some jangly and spunky rhythm tones á la Henrix, Stones etc. If you're into more modern distorted sounds i think you would have a problem with the top end sizzle though.
Summary; I love these for what I use them for!