Been using ever since I made that post. Only change I made was swapping out the Propel Packets with powdered Animal Pak Multivitamin for flavor and in turn killing two birds with one stone.
Personally a huge fan of "making" my own preworkout. Basically it's just caffeine powder (I get 200 mg and just empty them into some liquid, you can use as much as you want but I personally prefer 100-200mg), creatine powder (5-6g), beta alinine, and some flavor powder (I also had citrulline malate but I don't believe it's necessary). All of this can be bought on amazon or powder city for mad cheap, and you'll get basically the same effect as the expensive preworkouts you get on bodybuilding.com or something.