USPS Parcel Select Takes between 2 to 4 days to reach you once it's been shipped out.
USPS Parcel Select Takes about the same amount of time as regular parcels do through the USPS.
So you should receive your USPS Parcel Select Package within 2 to 4 days depending on how far you are from where the package was sent out from.
In rare cases it may take 7 days to get the USPS parcel select Package but I've always received my USPS parcel Select Packages within a few days to 4 days at most.
USPS Parcel Select ground shipping is not slow unless you compare it to USPS priority mail.
USPS Parcel Select Ground is a standard shipping service that delivers your mail within 2 to 4 days of the package being shipped out.
Priority mail is faster than USPS Parcel Select ground select service and takes around 1 to 2 days while USPS Parcel Select ground select usually takes a few additional days.
If you have something coming to you through USPS Parcel Select ground service then you should get the package within a few days.
The USPS Parcel Select ground is just a standard package shipping service through USPS and takes around the same time as UPS shipping and FedEx shipping.
It's just a cheaper alternative to other shipping services.