Imperial Restoration and Contracting

We had a terrible experience with our master bedroom and bathroom remodel. First, we were told to project would take about 4 – 8 weeks. Then it was extended to 12 weeks. It ended up taking 6 months. We only had workers show up at our house maybe 3 – 4 days per week, and they would only stay for 2 – 6 hours. Typically only 1 – 2 works showed up to a job. Secondly, the project was way over budget (about 30% more that the initial quote).
The drywall looks terrible and has cracks in it only 3 months after completion. The paint job of the room was very sloppy as was the wallpaper removal. The tile guy did a good job in the bathroom, but our contractor used budget marble tiles that are discolored in places. The French doors leak air at the bottom and our heater coincidentally does not work well this winter. I wish I had more reviews online to look at before we started our project so I hope this helps. Also, would love tips on how to pick a contractor.