Here are just some of the email feedbacks;

Just wanted to give some feedback. Cheng Ma was excellent - we were delighted with his hard work and his abilities and would be extremely happy to use him in future. I think he quite enjoyed it too?

Steve Sharp
Director
Business Language Services Ltd

Dear Cheng,
I am writing to let you know that I have received some very positive feedback regarding your recent interpreting assignment for Siemens. They were very impressed with your professionalism and your support.

Carol 
carol.sinclair@siemens.com

Dear Cheng,
I was about to contact you to say how grateful we were for your services at the event. We both thoroughly enjoyed working with you and I was most impressed with your style and expertise. The best interpreter is the one who you do not notice whilst making your presentation. As I said in the closing remarks, a presenter is only as good as the person who is translating. On that basis I award you 100%. I very much hope that this is the beginning of a long and happy relationship.

David
David Hutchins International Ltd

Dear Dr Ma,
Thank you very much indeed for your professional help yesterday.  It was quite clear that the delegation understood the translation that you gave.  You had little warning of what was coming and you dealt with a constant stream of technical and legal jargon with great skill - and stamina!  It was a pleasure to have you with us.
It certainly seems that chinalingua is the place to find excellent translators and I am sure we will be calling on your services again in the future.

Bill Tyrrell
GlaxoSmithCline