I don't know how hard it is on console with a controller, but on PC with keyboard and mouse it's real easy to pick locks. On a master lock i usually spend 1-2 picks to find the right position. Then i spend 1-3 to do the fine tuning that opens it. On Novice, Apprentice and Adept locks i almost always get it on my first. Expert 2-3 picks. Oh and i play on Adept (default setting).

The bug where the casting of resto spells (that has a small charge up) have happened to me too. Only way to fix it is to swap the spell back and forth.