Without having to deal with a commute, I've been doing a lot more biking for exercise lately. I've been looking for a way to plan out decent bike routes. I live in a corner of NJ where we several highways a couple miles a way, so it's pretty important to have a route planned so you don't accidentally end up on a road where bikes are inappropriate. This is very helpful!
Brouter is great, despite some minor annoyances that are ultimately rooted in the design decision that the OSM graph representation does not contain street names (a lot of bike routing happens in nameless trails). Locusmaps on android has the best routing front-end (it can use brouter or some others) I have seen so far, including a variety of desktop front-ends.
It's much faster and more customizable. The built in routing was fine in my previous country, but here in Japan it's barely usable because it won't route you along a "highway". But if the built in is working for you then no real need to change it.