Porter Square Dry Cleaners is a highly recommended business for dry cleaning and alteration services. They are known for their reliability, fast service, and easy-to-use automated system. The owners are friendly and willing to accommodate special requests, making customers feel valued. They clean various items, including queen/king size comforters and delicate garments, typically within 1-2 days. Most recently, a customer was pleased with how they shortened the straps on a dress on short notice, with the dress ready by Saturday morning and the fit perfect. The location is convenient to Davis Square, but parking can be challenging during peak hours. Customers have shared experiences of getting tough stains out, such as black escalator grease from light-colored slacks, leaving them looking brand new. Overall, Porter Square Dry Cleaners provides excellent care and efficient service, making it a favorite for many local customers.