The PS4 version has a speed boost, the ability to turn off random encounters, and the ability to have all characters heal and use limit break infinite times. I'm not sure if I'd use all of those all the time, but I want to play the original before playing the remaster. Yes, I've never finished FF7, only ever getting several hours into the PS1 version. My brother, being a huge JRPG fan has the PS1 and PS4 versions as well as the remaster, which means I also have access to all of them, but I'd jump into the PS4 version of the original and use those cheats liberally so I can see each environment and story as quickly as possible.
I know some may see that as sacrilege and robbing oneself of the true experience, but my main goal is just to know what the story and setting of the original are to be able to compare it to the remake. And to be clear, there is no way that I am playing the remake before playing the original. The only unfortunate thing is that my brother is very slow to make his way through the multitude of games he gets because he starts one, buys another, starts that, and then plays a bunch of them on and off. Generally, I don't want to play through a game he bought and wants to finish before I do (that's why I still have never finished Final Fantasy 12!) That means I cannot get far into the remaster once I finish the original.
A final point about me potentially playing through the original FF7, I want to do as much side content as I can, so I'm not merely going through the story. I would just be using the cheats to get through it all. Okay, hopefully, someone has some insight into how long it could take to get through it in such a manner. Thanks.