Approximately 12 months ago I purchased The Roku stick and I was bitterly disappointed with the slingbox connection via this device, so much so I returned the device within a week of purchase.
Not long after I purchased the chromecast as it was on a deal, mainly for its all round abilities but was again excited with its Slingbox application.
At that time it was better than my Roku experience but was no way near the perfect solution, it buffered quite a lot and picture was not HD........The slingplayer for PC was still the best option.
Now a few days ago I decided to re visit my Chromecast and see if there were any improvement.......
And I am pleased to say 100% better experience , great way to watch slingbox , hardly any buffering and descent response on changing channels. Although not quiteperfect HD it still looks very good.
The free new app works well(android).
Given the option the PC client still is first, followed by slingcatcher for older generation boxes (wish there was something similar for new boxes) .