You do not want it.
It is a sampling digital scope, so although it can do 500MHz with a repetitive signal, real sampling is 20MHz which means for real time sampling it is around a 2 to 4 MHz oscilloscope.
Also you will find the controls are not very convenient.
It would only be useful if you knew you were only going to look at repetitive signals, and if you did, why not look for a good analog scope? Better controls, more serviceable and never any anti-aliasing problems.
If you want a digital scope, even a Rigol 1052E would be far more useful with up to 1GHz digitizing.
Richard