[casstony]

I own a TSA120 and C11 Edge and tend to use the refractor for planets since it takes little effort to set up and get cooled and my observing conditions are usually unstable. I use the C11 mainly for deep sky because it gathers more light and I think both of my scopes are great. If I could only have one scope I'd keep the C11.

I think the 130 has a wider air gap between the elements and has higher performance over a wider range of wavelengths but I would choose the lighter and cheaper 120 for visual (and probably for imaging too).