As other reviewers have noted, Ahmedabad is very much not a tourist city. It's hot, dusty and chaotic - even by Indian standards. We spent three days here in February 2019 as a base for visiting the three Gujarat WH sites (here, Rani-ki-Vav and Champaner-Pavagadh), and honestly it's difficult to really appreciate the World Heritage aspects of the city. 

To try and fully understand the place, we opted for the Heritage Walk Ahmedabad, a semi-official endeavour supported by the local government and a bargain at only 125rs. The tour went for a couple of hours from the Swaminarayan Mandir, through various pol districts and ended at the Jama Masjid. It was a nice way to see the various aspects of what makes the city: Hindu culture, Muslim culture, along with the unique pol houses, and our young local guide was quite enthusiastic. That said, most of the pol houses are crumbling and poorly maintained - maybe that makes them more authentic? But at quite a few points it was hard to distinguish which were the historic houses and which were far more modern. 

Overall neither of us were particularly impressed with the site. We've definitely seen worse, but have definitely seen better. Of the three sites in Gujarat, this was definitely the least impressive.

While in Ahmedabad I'd strongly recommend visiting the Gandhi Ashram across the river from the Old City. Gandhi lived here for about 12 years on and off, and large parts of it are a museum dedicated to his life and works - fascinating for someone like me who only knows the broad strokes.