Mossberg usually is a big time Mac lover, but after a week of what he calls "intense" testing, he can't recommend it... yet:

Unfortunately, after a week of intense testing of the service, I can't recommend it, at least not in its current state. It's a great idea, but, as of now, MobileMe has too many flaws to keep its promises.

I am not referring to the launch glitches that plagued MobileMe earlier this month, such as servers that couldn't keep up with the traffic and email outages that, for some users, persist as I write this. Those were bad, but they have eased considerably. Apple already has apologized for them and is giving customers an extra 30 days on their subscriptions to make up for the poor start. The problems I am citing are systemic.

Read the WSJ article here [online.wsj.com].