Congratulations!!
If you are getting liquid in your mouth a couple things are possibly happening. (you probably know some of these being a 901 user!)
If this is a new kit that you just started using, make sure the batteries are completely charged (12 hours seems to be the recommended initial charging period) otherwise the atomizer may not be getting enough power to vaporize all the liquid.
If you are using a prefilled or blank cart that you filled yourself, let it sit after placing it on the atomizer for a few minutes so that some of the
juice wicks onto the atomizer coil.
If these are prefilled carts, it's possible they are overfilled ( some come that way). You can dab the end onto a napkin to wick some of the excess liquid away and give it another try.
If you are filling the carts yourself, you may have overfilled the cart. You can dab the end out onto a napkin to remove excess liquid.
If you are dripping onto the atomizer, a couple drops is best. Otherwise you can flood the atomizer which prevents it from getting hot enough or functioning at all. If this is the case simply disconnect the atomizer from the battery, remove the cart and blow into the battery end of the atomizer into a napkin to remove excess liquid. You may want to let it sit for a bit (cartridge side down) to let it dry out a bit and then try again.
It is an annoying problem and is normally something that can be corrected fairly easily. Sometimes a bad atomizer or battery is at fault. Without the proper power the atomizer doesn't heat up enough to actually cause the vapor and if the the atomizer is having issues it will not heat properly no matter what battery it is attached to.
Let us know your progress!