ST-20 BK Standard Series : I am sure this is good beginner guitar or a practice guitar

I've always been a Tele guy. I love my Teles but I've craved a Stratocaster for some time now. I live in the UK but visit my family in Hungary once or twice a year and thought it would be a good excuse to get a this to just have something to play on. The guitar is fairly well built and sounds like a Strat. Very impressed with how responsive the pickups are however switching between pickups doesn't really make a lot of difference in terms of how it sounds. The only noticeable difference is between the neck pickup and bridge pickup. The in-between positions seem to the same sound. Tried to set it up and the truss rod seems to be very difficult to turn with the wrench included. I was trying to lower the action and one of the saddles are stuck and wouldn't lower at all. Appart from these issues, this guitar is pretty good.