The Yu Strings trio was wonderful for my wedding ceremony (also have a quartet). They were very easy to work with, and sounded beautiful.
Responsiveness: I communicated with one of the violinists often through email, and I always received a response within a day.
Professionalism: Very professional, very talented players. We paid the extra fee to have a player at the rehearsal, definately worth it, everything was very organized the day of.
Value for Cost: Great value! This is a group from CCM (College Conservatory of Music at UC), so slightly less expensive than a "professional" group but just as if not more talented.
Flexibility: Very flexibile, they played every song that I requested. They are even willing to learn new songs for additional small fee. I had requested "All You need is Love" which was not on their list on the website, but they already knew it, and it sounded great.

The Yu Strings is such a great group. From the moment that we did contact them, The music coordinator responded quickly to emails and always suggested us great music selections. She helped to arrange music selections and to choose pieces that my fiancee always wanted to have for her wedding.

The Yu Strings did shine our day. Choosing music is the most difficult thing for us and they did assist us for the details so everything was so easy. The music selection was just what we wanted. They're on time and their music was so great..! I highly recommend this group for your future event.