I buy a fair bit of gear from the US and never have problems with USPS priority mail - it's tracked and delivered very fast.

I usually order all my gear from losi parts house on Thu/Friday and will recieve it on my doorstep By no later than Wednesday !!!

I have purchased stuff from Tower Hobbies before and find it wasn't that great, but i think customs had a role to play in the 10 week delivery......