Try Al Noor hotel is good as well at Sadiqabad, but they were used when M5 was not opened, nowadays if you are planning to go to even Islamabad then you can do it in 15 to 16 hrs.
i recently completed my tour from Karachi to Skardu and my first stop from Karachi was Faisalabad.
if you need more details then you can watch the video i made for the guidance with petrol, route and if you are with kids then what to do and what to avoid in Karachi Skardu Series.
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