I have the 90mm virtuoso. I have actually taken the 90mm mak and placed it on my HEQ5 side by side with the 200p and instead use the virtuoso mount with the 130p - seems to stand up to it ok. It is not an equatorial mount so field rotation does stop long exposure but then again if you wanted to do proper astrophotography you will need more than this type of equipment anyway in reality. It is great for webcam shots of the moon/planets. It is cheap, light and very easy to set up. I am trying to find if it can be computer controlled from stellarium etc which would be great.