.... So, no, not the right shop for me.
So sorry for that. In the German forum we have a guy who buys their products and is happy with them, this is why I had the idea to share *his* experience with you - but what you tell me is of course quite sobering. - Anyway, this whole Jwell business was not an answer to your question.
If I were a beginner and knew what I know now, especially considering TPD regulation, I would buy myself a Provari, just to be on the safe side. Probably not the P3 but the Provari Classic 2015 as it is considerably cheaper and has everything I need. I would know that to produce a considerable amount of vape one does not necessarily need high wattage and/or low resistance, so I would keep my hands off everything subohm-ish in order to avoid high temperatures.