I bought the Lenovo Ideapad 700 a little over a month ago, and Linux has been running beautifully on it. I needed was to add a couple of kernel parameters to be able to adjust the backlight, but I had to use similar parameters for my last laptop, so it wasn't a surprise to me. It came with a 128 GB NVMe SSD as well as a 1 TB HDD (which I switched out for a spare SSD I had), 16 GB of RAM, and a 6th-gen i7 quad-core processor. The graphics card it came was with an Optimus setup (i.e. using the discrete Nvidia card for acceleration only and the integrated Intel graphics for everything else), but given that I don't do anything GPU-intensive and I didn't feel like doing an advanced setup like PRIME, I just disabled the discrete GPU in the bios settings. I find the touchpad to be very good quality, and it works beautifully with the defaults provided by the synaptics driver (I tried to use the newer libinput driver, but I couldn't find a way to turn off middle-click paste, so I switched back to synaptics). The screen is only 1080p, so it might seem a little low-res if you're used to Retina displays, although I honestly don't care enough to find it very noticeable. The only complain I have is that the computer beeps kind of loudly when you press the function shortcut to open the boot menu (e.g. in order to boot from USB), but given how infrequently I need to do that, it's not a huge deal to me.

If you're interested, I got it through the link below for a pretty good price (the 'emailprice' querystring parameter seems to reduce the price by about $250, which is nice).

http://www.adorama.com/le80ru00fsus.html?emailprice=t

EDIT: If you have any specific questions about the laptop, I'd be happy to answer them! I'm extremely happy with it