The worst *A lounge I've seen is any of the SEN lounges at FRA. Food and drink cater to peculiarly German tastes that most international travellers don't find appealling. On top of that, there is no division between the designated smoking and non-smoking areas, so everywhere reeks of smoke. No computers. Generally at least as crowded as the gate areas. The one plus is that, if willing to wait two hours, a shower might be possible.