So do you recommend me to use the original plugin? or the Woo version?
Which one to use is purely a personal choice. It's like asking me if you should wear a a blue or red sweater. LOL. Both have Pros and Cons. But if you want to know my personal choice ... it's the Original.
Why?
Pros: Mostly because the the functions you use the most on a daily basis, i.e the order processing and tracking number management are MUCH more streamlined and easier to use in the Original. Also, the Original is first in line for development improvements and extra plugins.
Cons: There are only 3 themes to choose from and
slightly less 3rd party plugins you can use with it.
I've compensated for this by using a heavily modified child Davinci Theme which not only makes it look more unique and different, but also allows me to add extra functionality like Skype buttons in place of the phone number, Google translate dropdown in the header, Youtube video feed in the sidebar, Facebook Like box in the sidebar, etc. I'm not a "coder" ... just an experienced "reader/researcher" (Thanks Google!) and "copy/paster" lol.
Even without using a child theme, I would still prefer the Original plugin simply for it's ease of use. I have tried both the original and the Woo plugin and at first jumped back and forth between the two until finally deciding that the Original was for me. I can't say if it's for you. Just try both before importing hundreds of products.