MLS vs Propertyshark.com

[Mark Choi]

Hi everyone, from NYC. My first BP posting :D Searched around but did not come across this topic. I am looking for a program to comp residential properties. I'm not an agent, but can get access to the MLS via a licensed agent. Propertyshark.com is big here. Basic price is $40 per mos. Has anyone used both services? Do you prefer one over the other? Any strong arguments for either or both? Any thoughts will be greatly appreciated. Thanks.