It seems like no PPC engine is on good terms with their advertisers these days. A WebmasterWorld thread shows how not only does it take a day to start a campaign, but when you want to pause or resume a campaign it can take more than 24 hours. For the PPC market, a 24 hour delay, is simply not acceptable. One hour, ok, that is doable, but seriously, just pausing and resuming campaigns, that must be an hour or less. 24 hours or more, not acceptable.
One member reported that the ad scheduling feature is even affected by this.
I have one site set to display ads four days per week - Thr, Fri, Sat, Sun. Last week they never resumed after the three days off.
Forum discussion at WebmasterWorld.