This has all the hallmarks of a niche solution that will be dropped in a few years. It sounds like SLI actually, it needs profiles provided by Nvidia to work, it doesn't support all games and even in the ones that are supported, your mileage may vary. In this case you may not be able to enable it at all depending on the specific RTX card you're using and the resolution you want to play at.
I still want to see the games that support 4K DLSS tested at 1800p + TAA + Upscaling for comparison. Add that in and DLSS becomes even more of a niche feature. 1800p + TAA + Upscaling is a much more universal solution than DLSS will ever be. And you certainly don't need profiles downloaded through GFE to make it work.
The Tensor cores' main job is as a ray tracing denoiser, DLSS is just a way for Nvidia to get more people to register on GFE with their e-mail, but considering the limited horsepower of the combined RT + Tensor solution I wonder if all that die space was used by raster cores if the game devs couldn't have made the ray tracing enabled games look equally good by having more horsepower dedicated to reflections, even when it means duplicating renderings, but it still means that it's general raster hardware doing it, meaning that it can be used elsewhere on the game when needed, it's much more versatile. And from what we are seeing with the new Metro game, making things more realistic doesn't always work in a way that makes a game better gameplay-wise.
Also, they could use Voxel Global Illumination (VXGI) to achieve some of the effects, that is a tech that Nvidia introduced with Maxwell in 2014, so we've got three Nvidia consumer archs capable of doing it: