I got these to replace the pickups in my Harley Benton tele, it made a world of difference. These pickups are quite "hot" and spiced up the sound significally. I'd say the sound of them is good for blues, rock and maybe hard rock - they sound great with anything from cleans to quite high gain.
I have only soldered once before but despite my lack of skills in that area I managed to do it... even if it took a couple of tries!
So, my summary would be that I would recommend the Texas Specials for anyone who likes that kinda sound that they produce, so check out some sound examples before you decide.