I would avoid purchasing this for now. Did you read this (and other) thread(S) on these scopes? Despite having wonderful specifications for their price, they are not good. They seem to deliver more "grief" than "great". When I first saw their specifications and price I was excited, but that soon passd after reading the experiences of the poor people that bought these sad pieces of junk. Save about 50% more and get a Siglent or Rigol scope.
Hantek make fairly decent USB scopes for the price, but they missed the mark so far on their stand-alone scopes.
Not sure if you own one of these or are just basing your assertions on what others are saying?
Now, as an actual owner, my experience is once you account for the lack of support, shitty SW, noise issues, poor triggering, memory depth limitations, measurement limitations, barely functioning protocol decoding, a whole bunch of frustration etc etc it's still a reasonably functional and useful piece of test equipment for occasional hobby use. For the all in price of CA$264 that I paid for my 2C10 -> "2D15" I believe it's a pretty solid deal. Even the current price of CA$300 to your door is fair but to be clear I wouldn't be shelling out over CA$400 for the 2D15 as the awg just isn't worth the upgrade price.
Sure, if your budget is up there and/or you have a more serious use case then the DS1102Z-E has got to be a contender. Of course once you're up in that price range, why not just spring for a DS1054Z to get an additional 2 channels! See where I'm going here? Next stop $3k on a TEK