I have used a number of vapes and they all are pretty tough to inhale on, takes the wind out of me. what is a smooth easy vape that still packs a punch!
You want a punch then that is normally found in the liquid you're vaping. By punch I am assuming you mean what we call a throat and/or lung hit. Most e-liquid is made up of two base liquids VG (vegetable glycerin) & PG (propylene glycol). The ratio normally goes from a 50/50 mix up to almost 100% VG (called max VG). I've never seen PG higher than 50% however since the flavor concentrates are usually carried in PG it is almost impossible to get away from it entirely. It is the PG that provides the throat/lung hit. Since PG makes me cough I don't like it and stick to max VG myself but lots of folks do like it and look for what they describe as a satisfying throat hit. Higher nic also gives some throat hit but I'd describe it more of a peppery afterburn than an up front throat hit, but again some folks like it.
Finally if you get into sub-ohm vaping (which really just means your atomizer has a resistance of less than 1.0 on its coil so you need to give it more power to heat it up) you'll find you are producing bigger clouds which in themselves can be more of a hit. Especially true if you've got PG & nic in there since with bigger clouds you expose yourself to more of them. Sub-ohm vaping usually means you're going the DTL route, but not always, and pretty much requires you to use a tank/mod combo as opposed to a pen type device.
hey now! lol i pointed out those evil tanks... heheheheAmazing how someone looking for smooth and easy is pointed to coil building and wicking. Easy for some sure but someone looking for simple and easy usually isn't looking to be dripping and making sure the cotton and liquid wells are full every few pulls. Just my thoughts on the OP original request for info.