Not loving the perfect binding (over the years sewn bindings have held up far better) but I'd be willing to overlook if a few other criteria are met.
Does anyone know the paper weight (GSM preferably rather than poundage)? I assume this is 150 pages/75 sheets (page count is deceptive if a sheet is so thin the backside cannot be adequately used)? Also are the sheets bright white, standard white, off white, or cream? Finally, it looks as though they have no closure, elastic or otherwise, how are these at staying closed flatly after being put through the paces?
On a tangential note, this would be especially awesome if it were available in a dot grid.