Yeah, who needs monitoring from Pingdoms 10+ locations at any rate?
. On most I'm just placing one in the USA, one in the UK, then one a bit further.
I'm in the same sitution with Pingdom, don't want to pay the massive re-newal fee compared to their start-off fee which ropes you in.
Their panels seem very much the same in terms of features, I'd probably say I like the Binarycanary panel. When I've come at them with questions and one problem which I had I was satisfied with their response/resolution.
I'd suggest using them in sync for a month like I'm doing, to see how it compares (haven't been able to find a fault yet).