Hey Marshman,
If you are concerned about the quality, I would definitely suggest DIY
eliquids. You get to source your own components, use flavors from nationally recognized flavor companies, and can adjust or swap out components to the
juice at anytime. EX: You like watermelon, but you want it with more throat hit, but less nicotine, just increase PG and use less nic liquid. You can create your own wacky flavors that suit your mood or your tastes, and it saves you a lot of money over time (many people that do it pay $0.5-3 per 30ml, versus 19-29 for the store bought varieties). Check it out! If you have any questions, feel free to PM me.
Best of luck!