Ok here's my rant. USPS sucks a##, priority shipping should not take 6 days! No wonder there going bankrupt. Waiting on my 1st e-cig that didn't get purchased at the gas station, because the one from the gas station broke. 15th day without a cigerette but man I am JONSIN. Found some patches and I did everything but lick that bad boy before I thru it on my arm. The first three days were hard but theres like a second phase to quitting smoking that Ive never made it far enough to experience. Well I'll be sittin here with my bubbilcious and my nicotine patches tell Monday so wish me luck. USPS you suck and I now hate you.
Maybe I've been lucky but I've never had a problem with USPS Priority Mail not being delivered on time. Having said that, I have experienced packages taking over a week to get to me that had been shipped by priority mail. May sound like a contradiction, but every delay ever experienced came back to the shipper's delay.
Someone mentioned it earlier, but it bears repeating, just because a seller has created a shipping label and given you a tracking number, doesn't mean that the package has actually been shipped.
My first "real" e-cig (ego) kit that I bought online was over a week in getting to me. After a week of not having the package and no updates with the tracking number other that "...shipping label created...", I contacted the vendor. He claimed that USPS must have lost the order and would re-ship the following week. Surprisingly enough, my order, using the original shipping label was shown to have been delivered to USPS an hour after I made contact with them. I then got my package 2 days later.
Being the curious type, I wanted to know if USPS was at fault or the vendor. I hate to blacklist a legitimate vendor if it was not their fault. I called the origin post office. They investigated and spoke to the clerk who took in the package and remembered the package due to the shipping label being created a week prior. They were able to send me a PDF copy of the intake receipt from where the vendor dropped it off about 30 minutes after I had contacted him.
Of course, I won't ever buy from that

"...digital..."

vendor again since he was not man enough to admit that he had made a mistake.
I also run a small online business where I use USPS as one of the shipping options. Out of the hundreds of priority mail shipments made, every one has been delivered in 3 days or less (to US). I realize that there are exceptions and maybe I've just been lucky enough to have good experience with them, but USPS has always done right by me.
My point to this wordy reply, is don't be so quick to blame the shipping company. Unfortunately there are many vendors that use the shipping service as a "scape-goat" for their screw ups. If it is as frustrating to you as it would be to me, start making calls and find out what is going on.
@t40forty - I am crossing my fingers hoping your goodies come in soon.
I don't know any vapers foolish enough to use Parcel Post. We are much too impatient a group to do that........LOL
I would expand on this to say I don't know of very many situations, other than perhaps REALLY BIG packages or international shipments, where parcel post should even be considered. It's usually just pennies

cheaper, if not more expensive, and way slower.