I'd do nothing but reading if I could (ok, maybe eat some great food, buy some fancy shoes between two books...oh, and spend some quality time with the gorgeous guy I married while I am on reading-break anyway...)
The main character and 1st Person POV really work out beautifully for me.
Jamie is a very likable guy. And his voice is very authentic - I like how he doesn't believe himself smarter than the police or gets himself unnecessarily in danger or some other unbelievable plot-turns one often finds in crime/sleuth books.
I like Pete, his love interest/boyfriend, also - how insecure he seesm, how his feelings show.
I like that Jamie likes women. Major kudos to the author to show a different side of a gay man's world where it is totally normal to have a lot of hetero family and friends and colleagues - in a lot of m/m books that is not the case. There is a scene where Jamie encounters only gay men at a party - I love his reaction.
The hoarding was also shown in a way that didn't make it too depressing.
It was shown as a sickness, but the hoarder was not someone to be too sympathetic towards - this made it easier to stomach for me.