Well in response to your question, do you think you have the dedication and time to start practicing guitar? If so you have come to a good place for sure.
Of course not everyone has the same amount of time or picks up things as equally easy as others. But the Guitartricks Fundamentals for me were exactly what I needed when I first started out playing guitar without a personal teacher.
It is very structured, unlike a lot of websites that offer stuff without any structure, that's why the Guitartricks Core Learning System has the advantage over many other guitar websites in my opinion.
You can always try for a month, because the subscribtion fee on Guitartricks is a lot lower then most other websites, only $14.95.
Although I would like to mention something. I don't know what kind of music you are into, but get something to play as soon as you can, if it is a simple riff or song, it keeps you thrilled and excited about playing guitar. Most people abondon their guitar after they get bored with chords and patterns without playing any songs.
So again in short. Yes, if you are totally unexperienced like I was, the Guitatricks Core Learning is a good and structured way to get into guitar. Though you may have to find your own errors with some things, because you don't have a teacher that can point it out for you. On the other hand you can use this forum to ask your question and you can get answers from many others.
Ps after that Guitartricks offers more then sufficient stuff to keep you going on. Currently I'm an intermediate/early advanced player and the website keeps my guitar in use any time of year.
( For other people, I currently do not own a subscribtion, been away for a year and lost my previous accounts password, so this is a new account :-), going to re-active my subscribtion soon )