Yeah, it's good to try new things but for the most part cubes will be pretty close to the same in most respects. Appearance can vary largely, but buzz will generally only vary slightly.
PE is pretty much "THE" standout cubensis in all respects.
Looks like dicks, is generally solid all the way through while most cubes have hollow stems. (weighs more)
The potency of bad PE will surpass the best of other cubensis strains.
I could eat an eight of regular cubensis myself and visuals are still a 50/50 chance.
An eight of PE and reality is a VERY relative term. Definitely more than most can handle. Most people I know like just over a gram.
The buzz is different too. Definitely more like acid. Energy, increased heart rate, very visual for most, and a solid ride from start to finish.
Pretty much any other cube is more of a narcotic, dreamy, sleepy, yawny, giggly, body buzz with the occasional visuals and generally comes in waves.
Buzz is TOTALLY different.
You either love em, or hate em. I know people that LOVE regular mushrooms, but won't touch PE in any quantity.
BUT... I know more people that won't part with a penny unless it's PE.
Regular cubensis are FAR more effective and useful in therapeutic applications than PE.
It's easy to go through a crop of regular cubensis, but as soon as someone circulates some PE all you'll hear is how your shit is bunk if you're the type to share with friends.
This is for those that haven't tried them.
Also, you can increase the weight of your mushrooms by almost a 1/3 by mixing vegetable oil into your substrate.
Due to the potency of PE, it's generally a good idea. It actually tones it down a bit making it appeal to a broader audience.
Peace.
Tav