I won't bother reviewing the Coffin puzzle - there are plenty of blogs out there talking about what a great puzzle this classic is...
Instead, I'd like to just say that this was my first order from Nedeljko and it will assuredly not be my last. Not only did it come extremely quickly, not only did they have excellent customer service and communication, but, most importantly, this is just a wonderful piece of craftsmanship. A good disassembly puzzle like this is best when you cannot even tell which parts are supposed to move. I could hand this to someone and tell them it is just a little wooden cube and they wouldn't know any different until you find that one tiny key piece that can slide out; even then it will take minute to find the next steps, as the tolerances are just that good.
On top of this, the use of contrasting woods shows well, and it just feels great in your hands. It is a good size, and the pieces are smooth and solid feeling.
I will be coming back here as these guys are up with there with any of the best wood puzzle makers working today!