I called them because I had a coupon for a tune-up and roller replacements. They came as promised and replaced my rollers with the same ones some other company in town charges twice as much for. The service was also great and yes the guy who came spoke English and they are licensed and bonded. The guy that worked on my house had to go to school before being able to service anyone's house. So don't believe what other companies may have told you.
I spoke to them about springs and if you read my other review, these guys will not try to up sell you on things you don't need and will do the job they hired you for. Most companies will try to sell you on things that you don't need. If it's not broken don't try to fix it.
I highly recommend this company to anyone looking to get their garage tuned up. This company will not also trick you into writing a 5 star review to get a discount. The price listed is what you have to pay. No games with these guys.