Off to see EVIL DEAD BURN tomorrow. Groovy!!

No spoilers please. (I only watched the first trailer as started showing too much) But are the rumours true about some poor quality CGI in the film?

I already saw some bad fx in the first trailer. (The door slam finger bit was pretty bad and totally implausible, a door would cut your fingers off like that!??) and the crawling on roof looked fake as hell. Was hoping they were unfinished effects for trailer and the finished is great?

Surely they know Evil Dead fans would prefer practical fx right?