1. Does the template / source / core propose potential security Issues?
There is no chance to see the core of the website without having the actual files, but in matter of frontend it seems very clean, however any issue on security can be solved easy with the proper experience.
2. How is the overall quality of the template / source written in terms of best / common code development practices?
I would give a 80/100 as it load some js scripts that doesn't use, like the emojis one
3. Does the template / source / core face potential compatibility problems with known plugins (woocommerce + similar extensions)?
As checked on the source i just found a error loading the favicon, any compatibility issue can be solved too with the proper experience and skills
4. What would be your 1-2 alternatives for a similar theme but thinking about the top themes found online and why?
Betheme and Impreza, both pretty awesome themes that can be customized into almost anything you can imagine.
5. If it was up to you to use this template / theme, would you use it to create a webshop? If yes, why? If no, why?
Yes, because it already was build thinking on a webshop so it include visual features for it
6. Please add any, within reason, other findings I might have missed (SEO, Page load foundation, etc)
It would need a boost on some visuals to convert visits into sales.
PS: Yes i would finish a website before this 16 using this theme or any of my 2 alternatives