This is a sturdily and quality built unit - it comes on and off my mount every time I image and yet it has never once gone out of collimation in almost a year of operation. Optics are all they are stated to be.
Only downside is the focusser which when you hang heavy ccds and filter wheels on it just isnt really up to the job - Ive now converted this to a PDF using adaptor kits that are now available and problem solved.
Would I buy one again - definitely!
This scope is a pleasure to use with my Canon 20da. The focuser is smooth and adjusts 360 degrees to assist the framing of objects. This scope is extremely fast. Dim nebulas appear in minutes - the horsehead was imaged in 3:30 seconds.
The fit, finish and feel of this scope is absoutely first rate.