What will 1) achieve here? Isn't the biggest problem ~elsewhere~ (i.e. my ISP sucks, and all the gazillion devices on the route might buffer far too much data)? Put differently: Can I make a difference, even if it's "just" for me? (I .. cannot, I guess - I'm stuck with a crappy cable modem/DECT base/wifi router combination from my ISP. But I'm interested in general)
Regarding 2): Is that recommended? Last time I checked most of CeroWrt was sent upstream, so is there a big difference between a reasonably current version of OpenWrt?