Tower 55

Who has Tower 55 locos? I’m contemplating the purchase of a Tower 55 locomotive (diesel maybe a C45ACCTE or SD70 Ace), it would be DCC and probally with sound, and would like opinions/feedback on the product. Detail, sound, running, etc.
Thanks

http://www.internettrains.com/

They carry the line.

I want a BNSF SD70ACe realy bad[:P]