How accurate is Poker EV data?

[RichGambler]

Does this program count rake? I believe it has to have some flaw because everybody runs worse then expected based on this program.

Recently I did a lot of EV calculations with hand ranges and started doing shorstacking 12 tables on 0.25/0.5NL I believe with this strategy I could beat up to 2/4NL when there are good tables...

For some reason results greatly differ from expected results.... Is this just temporary? How accurate is this software Poker EV data?

Here are results of 2 days...