hi everyone. i am in the market for my first vape, not much experience, i only tried the mighty over a weekend and was pretty amazed by it. so getting one of those was my first impulse, but since i know i will never go through its entire chamber in one sitting (i will mostly be using it by myself, and i do like taking breaks), i am wondering if a session style vape is for me.. naturally i came across the firefly 2 in my research too, and while the whole concept of on-demand-vapor seems much more suitable for the way i would use it, the price is somewhat off-putting, and i am also a bit concerned b/c of the rather mixed responses it seems to be getting from its users (vs the mostly very positive reviews). i came across an offer for refurbished fireflies from what seems a legit source (firefly lists the retailer as official for europe), about 100 euros cheaper than new (220 euros total), and warranty for 1 year. seems like a good deal to me, but besides general thoughts you may have regarding firefly on demand vs. a mighty session - are there any concerns you would have regarding a refurbished unit?