Sorry to contradict Squeaky, but I am of the opinion that they are the best.
I changed our (crappy) Eurolocks for these ABS locks last year - a five minute job, btw. I certainly did my homework beforehand and discovered that they have several features that make them better than other brands. You'll have to look online for yourself, but a couple that I remember are:
- One of the pins is ferromagnetic and is attracted to the appropriate depression on the key, which contains a small magnet. This, apparently, precludes the possibility of tapping on the lock in order to make the pins jump until they align. A common burglar activity.
- The barrel has a weakened waist near the opening which overcomes the common practice of breaking off the barrel with a pair of pliers - another burglar tactic. The outer portion will break off, but leaves the rest of the barrel in situ keeping the lock secure. A genuine key will still turn the lock.
I can genuinely assure you that I have not been burgled since fitting the locks.
Mind you, we'd never been burgled beforehand either!