I have one of these, the same one in Gold, it works just fine for astrophotography.
"In my opinion"
It is a much better visual scope than the shorter focal length ones.( eg 80-ED )
It will beat these shorter focal length scopes on brighter objects such as planets and brighter galaxies and nebulae as they will be larger and will also have less colour distortion.
Wont be as good on fainter diffuse nebulae ( horses for courses ).
Suggest your best investment before a reducer is to sort out getting a guide camera. ( small ZWO ones seem popular, there are many others ).
Also you will need a astrophotography camera of some sort, again best budget option is a canon DSLR ( anyone with "liveview" is fine to start with EOS 450D onwards, readily available 2nd hand )
You have a bargain there indeed.