I owned a 30' Sunnybrook for several years and can say without reservation that it's quality and reliability were excellent. I would have gone with a Sunnybrook when I "upgraded" to a larger trailer (5th wheel) but they did not offer a floorplan I liked.
Any Sunnybrook dealer can walk you through the quality differences in that brand, and should be able to compare them with other trailers, once form fit and finish are compared, your choice should be obvious.
Johncmr