Jeff, I have a lacquered set (not this one from HoS) and I am pleased with it. I think it may very well increase the durability but then I do not bang my sets around so I am not a good judge of that.
I will say that it would be nearly impossible for the black to "rub off" as one of my older ebonized sets has.
I am fond of the HoS Zagreb '59 Series Chess Pieces. They offer this set in several woods and finishes. I typically would chose ebonized boxwood and natural boxwood. However, they also offer these same pieces with a "lacquered" finish for a few dollars more. I've never seen pieces with a lacquered finish and wonder if there is a practical reason for the lacquer finish beyond aesthetics? In other words, does the lacquer increase durability?
Any comments or experience you could share would be appreciated.