Ooh Dear, this isn't going to help with the anti-cyclists...
Okay, so I thought I'd try the route planner out and see how it fared against the TfL journey planner. I asked it to advise a route from my office off Regent St in the West End to my house in South London.
Within 200 yards it had directed me over a pavement and down a pedestrianised street, over a pedestrian crossing, and down a pedestrianised alleyway, and then the wrong way down a one way street to St James' Square, and then down the wrong, one-way exit of said square into traffic on Pall Mall. It didn't improve much from there, taking in other one way streets, main roads and frankly lunatic detours and right hand turns on major roads. Absolutely nuts.
Almost as if it had been programmed by a cycle courier or cursed lycra lunatic that is so loathed by the majority of Londoners.
The much maligned TfL Journey Planner is an absolute winner by comparison.