baleno was the best car they ever sold in pakistan.
But i guarantee you, a margalla when fixed up is a good car. The ac needs a new condenser (multiflow type), rear springs and shocks need adjustment (they were originally soft and cng cylinder lowers it even more). The ignition system must be overhauled at this age.
Engine should be tuned to factory settings, when these things are fixed, you will rediscover it.
Thing is, suzuki can make a good design, they will get sloppy on the execution, cheap out in many places e.g the condenser. I often say to people Suzuki comes incomplete from the factory and requires owner's engineering skills to be completed 
the good thing is, it is a simple car, easy to fix, and once it is fixed the way it is supposed to be, it won't give problems. Only pain with it is the carburetor, we only get scrap parts here, if something goes bad, it becomes a nightmare