I already published a review of the haleslock#1 here, so time to speak quickly about this one.
Shane Hales, designer and crafter of this haleslock series learnt about his mistakes and released more of this lock. Guess what: it was sold out super fast, and maybe even faster than what he thought.
What are the differences and common points between this puzzle and the other one.
First, both are not crafted from scratch but are modified locks that can be bought in the market.
Then, both require several steps to open even if this one require fewer steps though.
Both are very niceley designed and are quality locks that a serious metal collector and/or serious trick locks collector should have in his collection.
In my opinion, this trick lock is closer to a trick lock (ie: more a trick than a sequence of moves to solve) than to a real sequencial discovery trick lock.
Indeed it does not have a lock of steps. The hardest being the first one and after that it's pretty straight forward. If you have ever played with haleslock #1 you will notice that the difficulty is less high. The price also is less high.
I wish the puzzle was a bit more difficult but I like the effort put in this lock and I think Shane Hales is definitely a genius. I hope some more in the series are in the mind of Shane.
If you have a look at his website, several puzzles include locks or keys, like his imitation locks and the puzzle called "turn the plug" which I hope he could craft some more.