I really liked the opening chapters but it fell apart for me quickly after that. Too superficial and just no spark, I guess... 

Didn't connect with the characters 

Unfortunately, I did not care about the Wizards and this one seems to be more about the Wizards than about Death

Pfft, not for me. The mystery is intriguing, but didn't really care enough about the characters to read on and find out what it's all about.
 
I can imagine people that love Pratchett liking it a bit more than I did but it's not as good as Pratchett.

Wasn't capturing my interest and didn't like the writing style

I just couldn't get into it. I may pick it up again but not for me at this time. 

This was just not grabbing me. There was potential, but of pushing through a bit further wasn't too appealing to me, since the sequels may be very hard to get a hold of. What do I do if I end up loving it!?

Just wasn't for me

Not what I'm looking for right now

I just lost interest entirely