I have never had bad luck persay with any shipping company, just prices vary.
For me USPS is the cheapest, but tracking is meh, even with priority, but I usually use them being they are close.
When I visit my parents and I am shipping something out, I use UPS and their tracking is spot on.
I will say I just over-nighted a MO the other day through USPS and the tracking number they gave me said it would be there in 2-3 days and well it actually got there over night, lol! So just depends I guess.
For example, although I can't remember the box dimensions, but it was 15 pounds I believe, type X 5.25 componet set to Washington State from Ohio and it hit me up for almost 40 smacks through UPS. Only sold the set for 110 smacks, so only made 70 bucks out of it. //content.invisioncic.com/y282845/emoticons/frown.gif.a3531fa0534503350665a1e957861287.gif I will do items plus shipping to people that live far away anymore.