Nice question I also planned to buy this capture device or the ElGato one.

I've owned around 4 capture cards in my time,
The Elgato HD, and the MRK 2 pcie card they have, the old hauggpaugg capture cards when they were around, and ive owned the XR1 (non pro ver) for about a year or so now. 
I bought our XR1 when they first launched, and its been a very pleasant plug and play experience, i have unfortunately not owned any of the modern competition but the XR1's are crazy for the price, and back when i was looking into capture cards they were crazy expensive, once this streaming boom happened, and every company was rushing to deliver a streamer esk product, that was just another boring black box with a single accent color i think evga took a slightly different approach, even tho the setting are a tad bit limited as its geared towards the console gamers, the XR1 is almost like its own audio interface too, having the ability to plug in headphones and a mic and mix the audio onboard the device rather than relying on software its a little limited in the range its able to do that but it does make it great for quick and dirty raw captures at events. sure ill still need a laptop but typically i find it pretty nice. i don't use it all the time tho since its mostly for fun and to show friends some clips when i go places. and who doesn't like that RGB grid on top pretty cool lookin imo :P
hope this helps if you have any specific questions about the card feel free to ask or even call us directly at 1 (888)-881-3842 and support would be more than happy to answer any questions you may have about the product ^^