I've got the Minix Neo U1 with the A2 Airlite remote from eBay for $169, Australian seller. Previously I had the Q Box $100 and it didn't work, but a mate of mine has the same one and had no issues for almost 18 months now.
You have to have a good strong internet connection to be able to stream without interruptions, and depending on how many devices are connected to your wifi you may have upgrade your router. We had the standard issue Telstra router connected to NBN fixed wireless (satellite NBN for regional area) with two iPhones, iPads and an iMac, add the Kodi box and it couldn't cope. We upgraded to a dual band wifi router which fixed it. Although on Friday or Saturday nights it still gets interrupted streaming occasionally which I put down to internet traffic.
It's a whole new world of technology that I never knew existed 6 months ago, good luck!