Hi reggy, welcome! I'm a newbie who has crammed alot of research into my 30 days free from ciggs (what the forum members call analogs)...if I only knew THEN what I know NOW! I was a pack & a half/day smoker and still loved smoking but knew I should quit...off I went. So first off you and your colleagues should be prepared for a good amount of maintenance, vaping is a whole other wonderful world! Initially I thought "well I don't see myself doing all THAT"...(filling, cleaning, mixing flavors and nicotine juice, "dripping") nor wanting a non-cigg looking device like a piece of pipe or a box ("mods"). Not being sure the e-ciggs would work for me I started out conservatively with GreenSmoke (NOT advised and BEFORE I found this forum) and was able to go without smokes for the first time! Fast forward... I am anxiously waiting for that piece of "pipe" highly recommended by others, the "Chuck" with hopes to order the Silver Bullet as soon as they are back in stock. Reason: supposed LONG battery life (2-3 days) and excellent vape, using atomizers from another e-cigg that I like, the "510". I have been lucky in that I only destroyed my GreenSmokes (after having a decent amount of user enjoyment) by topping off the nicotine cartridges too much and flooding out them and my batteries!!! I did not care for the kit anyway and by then had gotten the 510. I LOVE the 510 (and it is well recommended) but for the short battery life..I then ordered the "DSE801 penstyle" for longer battery life (it was, but still not enough) and tried "dripping" because the cartridges always had to be "topped off" frequently anyway! Have I lost you yet??? Now I LOVE dripping, wastes less e-liquid, better vapor and taste. A couple drops on the atomizer and I get a cigarettes' worth of nic! For evening vaping at home I use less nicotine because I vape quite often and now was looking to have fewer battery changes...I always have batteries charging at work and home and until I ordered extras (A MUST) of the batteries and atomizers for my 510 I was PARANOID I'd have to go back to analogs!!!! I no longer want/care an e-cigg that looks like the real thing, just want a long lasting vaping machine! I am NOW doing (and am really into it) what I thought I'd NEVER do...all the above...it's become my new hobby! I was horrified at myself at first as I ordered more and more stuff and kept experimenting...leftover from my drug use days I suppose (!)
I would recommend the 510 if you want a conservative piece for work or in general but order the PCC (personal charging case) and backup batteries and atomizers (I have been lucky with mine but other's hardware occasionally fails fairly quickly). I think the 510 is a workhorse and people have had more good results than bad. Battery life is just too short...The most conservative "mods" IMO where you use atomizers from other e-ciggs and use bigger batteries for longer lasting use that have good reviews are IMO the "Chuck", the "Protoge" ... the Silver Bullet is pretty cool looking. All these are either made to order (Chuck) and you'll wait a bit for them (have batteries and charger ready, they don't come with it), or are on back order or out of stock but hang in there...in the meantime try the 510 & PCC, with spare parts and E-liquid for topping off cartridges or "dripping". I just LOVE the world of vaping, am so happy to be away from the nastinest and health ruin of cigarettes...read this forum, take copious notes...you'll "settle in" and get a routine...hope this lengthy response helps!!! Enjoy the journey!!