There sure has been a lot of hate for this movie, especially from those who haven't even seen it. The occasional joke misses the mark and there are too many throwbacks to the original. Chris Hemsworth's character is pretty much a one joke effort and is the weakest part of the film. However, the four leads are terrific and have great comic timing. The effects are great and for once are not all CGI. There is potential for a sequel and I would welcome it.
The film is a lot of fun and will probably convert the haters if they can remove their heads from their butts. The reason the 1984 film is so iconic is because it is over 30 years old and has become a classic. Take off the rose tinted glasses and people should see that the film isn't perfect. The 2016 film doesn't fall far behind the original and will be around for a long time too - at least until the apocalypse - so sit back and enjoy it.
Cameos from all the original cast including the late Harold Ramis (check out the museum in the early scenes).