I voted nope although I have only read one so maybe not fair.
Generally I like hard boiled but not that one. I will probably try another one of these days.
On a side note, Max Allan Collins modeled a series(2?) on the Parker character with Donald Westlake's permission. Nolan and Quarry.
I like Quarry quite a bit, but have been unable to find any Nolan except as pbooks. maybe I will get crazy and order a pbook.