Well let me tell you that unfortunately no tab out there is 100% accurate
often times you will find that you will have add to it or change things around
for example for me to really nail this song I had to spend a great deal of time listening to it very carefully to try to get the nuances and to memorize it so that when practicing the individual segments I would know what they had to sound like even at a slow speed then I checked other tab books, I also own the Japanese score version of Alien Love secrets, this is helpful because it gives you different perspectives of the transcription and finally you just have to let your ear do some tweaking on some of the phrases and viola! you got it.
It will take some time to get it down but it's worth it, it's a beautiful song
have fun with it and once you have down practice it with the
backing track.