/Refers to Season 1/
A distinct Irish approach with lots of black humour and political incorrectness - but crimes are never fun, but characters or situations can be. Singular performances (well, Jane Seymour was 70 when filming, can you believe this?) and versatile cases (true, not all are equally interesting and meaty, but still...).
In spite of evident exaggerations, the Series captivated me in the very beginning and I really do hope that Season 2 will follow as the last episode ended in a promising manner and several storylines remained infinite. As for similarities, I would juxtapose Harry Wild with Shakespeare & Hathaway: Private Investigators from UK. If you liked-enjoyed one of them, you would definitely like-enjoy the other as well.
PS Season 2 has somewhat lost its "sheen" and vigour, with some cases where one could easily surmise the wrongdoer, but 7.5=8, so - no change in my opinion here.
PPS Season 3 is pleasantly frisky again, although in some cases the solution comes a bit abruptly and the role of Garda is undermined.