I would never recommend Topfield ever again.
You will notice when you have bought the damn thing how stupid their software is.
For an example, you can't rename or add a satellite.
You need to download the configuration file with a special software to your PC which means you need to connect the USB cable and download it, next thing is that you have to use their editor Vega software which in my opinion sucks, after that you have again connect your PC to the receiver and upload the configuration file, then you have to reboot the receiver to make the change take effect.
This is only the start of it, Topfield charges a hefty amount of money for their receivers which in my opinion is really bad.
Do I have anything positive to say? yes, their design is pretty nice and the tuner is very sensitive if you live in a fringe reception area.
My recommendation for you would be to look at the Arion AF-9300PVR, it's better than Topfield and the Aion is the OEM manufacturer of Echostar PVR-5020, the AF-9300=PVR-5020 but with a nicer design.
http://www.satellite-heaven.de/index.htm?jump=testreports/arion-af9300pvr.htm
The Arion is freely available in Germany and you can get it for around 380 euro without HD.
Humax is pretty good, but they are old and lives on their sales on pretty old models.
In this group i would surely recommend Arion.