I also like it. Someone took a lot of time to refinish it. It may not be period correct, but it reflects what I would call a "labor of love"...
The grips appear to be one of the better reproductions. Some of the poorer repros leave a gap in the top left grip, where the grip fits under the sideplate...Others have a much finer checkering line spacing which just doesn't look right...Yours looks just the way it should...
A refinished Luger like this, mismatched & refinished, would still sell (and quickly) for
at least $800 at the local [WNY] gun show...and quite likely more...
The area of the country where I live sees very few Lugers/Broomhandles/Walthers; they bring collector prices regardless of condition or correctness...