I have a vested interest with Drip Hacks yet i will give you my honest opinion.
They are sweet flavours, very sweet at times. There are some great flavours from them and others that simply are sweet. In terms of coil performance, in my TFV16 no issue whatsoever, stil get 3-4 weeks a coil from them using drip hacks but i could imagine smaller coils will struggle a little bit more.
their starter kits are exceptionally good value though. Everything you want for 250 mil for like 15 quid, well worth the price. They often have deals on and if you join their group on facebook they have discount codes as well running, from regular to special holiday ones.
If you like sweet then they are fantastic, with some great choice. Are they the best? Probably not but then someone else will swear by them! I buy from them religiously now but even i wont claim they are amazing like other fan boys of companies do haha.
So yeah, give them a try, you may find if you mix up the profiles you order that they turn out to be really nice for you.