Depends on your preference too, some people prefer spool valves like the DM/Geo/Macdev, some prefer poppit markers like the ego or whatever.
Spoolies require a bit more maintenance.
I think personally the empire Axe is a wonderful marker for the money, definitely not something you'd be embarrassed to be seen with and more than capable of keeping up with markers at twice it's price point.
Get to a tourney, try as many as you can. Don't be afraid to ask players about their markers, they love talking about their kit