i'm the regular weekly sufferer of this entire situation. We used to believe, motorways in pakistan were too good when it comes to managing things. i've got E-tag on my vehicle and every week i have to come to islamabad entering the motorway from burhan and exiting islamabad and vice versa. there are long waiting lines on the E-tag lane on the m2 exit on islamabad. when i asked the guy, he said, sir you need to pay 60 rupees and this e-tag wont work now. means, my etag would work when i enter from islamabad and exit at burhan and this would be 50 rupees for this trip but when i enter from burhan and exit islamabad then i'll have to pay 60 rupees. their reason for this, "sir FWO ne m2 ka toll increase kr diya hai", whereas you dont even get on the m2 practically, you are on m1 and then u exit towards islamabad. on the other hand, the FWO increased the toll tax tremendously. the same 450 rupees for isb to lhr is now 510 rupees and then you have to get another E-tag now issued by More (i guess FWO sold this to some private company). still you have to wait in the queue.
My Advice: dont go for the E-tag for now, wait!!!!!
as far as the new toll plaza is concerned. Thats the NHA at its excellence. Without the road being widened, the toll booths have been punched in the road and literally you feel like, they've been squeezed in.