i have never used those in particular but a few things to note
they are alt az mounted meaning that they are easy to set up for the night (no polar alignment) but will not be good for deep sky photography because the image will rotate in the field of view throughout the night
the aperture is good, quite large, but the f ratio is 10 meaning that deep sky objects will appear quite dim.
these kinds of scopes are pretty good for planetary imaging and viewing though. they have a large aperture, long focal length and a small central obstruction (caused by the secondary mirror)
that is just a few thoughts. everyone is after something different and the problem with starting out is that sometimes you don't know what you are interested in. this is not the kind of scope i would buy, but that is because i like deep sky imaging. others might love them. try before you buy
