Pros: Beautiful to look at and listen to, easy and fun to play!
Cons: Service (lack of) and discontinuance of some of the cabinets
As a classroom music teacher, choral conductor, church musician and someone who simply enjoys playing for my own enjoyment, I have purchased two Mark 10's and four Mark 12's in the past 8 years and have totally loved all of them. Both models are very user friendly with an easy to understand manual and video. Sounds are gorgeous (some string sounds kinda artificial tho')and the volume can really boom. Being a classically trained pianist, I love having three "real" pedals that function like an acoustic piano's (they can be assigned other functions, too), and a full sized keyboard that really feels like an acoustic piano when you play it. Cabinetry is also beautiful...I have purchased keyboards in oak, walnut, cherry and ebony and all are "fine furniture" quality. The ease of use (functions are easily accessed, not deeply layered as in Roland...also purchased two Roland top-of-the-line keyboards and returned them due to their difficulty to access and combine sounds), and recording ability which enabled me to direct choir without an accompanist..I pre-recorded my accompaniments to free myself from the keyboard...were the two primary reasons I selected Kurzweil. Main concern is lack of service, especially in remote areas. Several cabinets are no longer available which is disappointing and Kurzweil Mark 10 & 12's are difficult to find in the Four Corners area. There are more expensive and tricked-out keyboards, but the Mark series offers some of the best, in my opinion.