The business I work for used Telsec's mail service for almost a year while we were in the process of moving from a home based business to a proper office.
Customer service at Telsec was always on the ball and prompt with sending out any received mail. There was a slight hiccup with cancelling our services as the individual that normally handles closing accounts was on vacation when we asked but one phone call and forwarding on the email with the date we requested our services end was all it took to sort it out and get a refund for the extra months charged.
If you need a professional office to meet clients in or just a mail forwarding service so no one comes to your house looking for your business I highly recommend Telsec.