Also in the kite business and UPS does a great job getting stuff where it's supposed to go, IN THE US. Once it's going outside our borders, we only use USPS. Costs less, gets there dependably, but not REAL tracking like UPS. Basically, the tracking is little better than "it was sent" or "it is here."
Yes, USPS tracking is a joke. My last USPS tracking fiasco was a tax return and check sent Certified Mail to the IRS last month. USPS tracked it from FL to NC, but then got stuck on "Expected Delivery: April 13". Last time I checked (early May), USPS still showed "Expected Delivery: April 13". When USPS was asked to investigate, I was told "we're pretty sure it was delivered". "Pretty sure????" Certified Mail & USPS tracking are really pretty worthless. When my bank confirmed that the IRS had cashed my check, I dropped the issue, but I'll probably use another delivery service in the future.