In depth analysis of the influencing variables of this storm's possible track and intensity are laid out quite well here:
https://www.tropicaltidbits.com/
Tends to be updated in the evening, and only once a day when there is an active storm.
There are many models one can pick and choose that picking one model's graphics for doom and gloom for any particular area is pretty easy.
It is 5 days out. Track error averages at 5 days out is some 225 miles.
That said it is likely close to Cat5 Status right now, and the only thing which can degrade the storm in that time is land interaction with Hispanola and Cuba and only if the core is actually over land.
The Oceanic heat content in front of the storm is very large. There is very little forcasted wind shear to negatively afct further intensification. The Turks Caicos and Bahamas are not significant enough, height or mass wise, to impact it feeding on those hot waters.
This storm could be one of the most intense ever recorded in the Atlantic basin. If you prepared heavily for Matthew, only to not see much of it, well, don't make a mistake with this storm by not taking it, or the forcast, seriously. Wherever it does eventually land is going to get smeared.
There is very little that can really weaken this storm and a lot which could help it intensify from small to medium sized cat 4 to a large high end record breaking Cat 5.
I am worried for Family/Friends in Florida. Irma could be a true monster.