When I used the texas method for about 8 weeks my squat went up from about 275 to 405. Admittedly, a lot of this strength was muscle memory. My deadlift got worse. I also had a minor overuse injury in my right hip and I think this was from squatting 3x a week. I was also squatting with a VERY wide stance and I think this is the main reason I had the injury.
In retrospect, the Texas method worked VERY well for me and increasing my squat, but I injured myself from too wide of a stance. I think if I had narrowed my stance or just let it heal and not tried to push through it I would have avoided the injury.