ABS - American Building System is a well-established company with a long history of experience in the construction industry. They specialize in the manufacture, design, and installation of passive houses and modular houses in Madrid. One of the standout features of ABS is their high-quality products, which are certified through the official Passivhaus seal. This guarantee of quality is a major plus for customers.However, there have been some issues with the quality of their work, particularly with regards to defects in the construction process. Some clients have reported problems with leaks, cracks, and other issues that have arisen after the installation of their homes.The company's pricing is generally competitive, with some clients reporting that they have received good value for their money. However, there have been some issues with delays and communication, which can be frustrating for customers.In terms of innovativeness, ABS is clearly ahead of the curve, with their commitment to sustainable and energy-efficient construction methods. Their use of high-quality materials and attention to detail is evident in the finished product.Despite some minor issues, ABS is a reputable company with a strong track record of delivering high-quality products to their clients. With a little more attention to detail and communication, they could take their business to the next level.Overall, I would recommend ABS to anyone looking for a reliable and high-quality construction company. However, potential clients should be aware of the potential for defects and delays, and should carefully review the contract and communication with the company to ensure that their needs are met.One issue that has been raised by some clients is the lack of response and resolution of issues related to defects in the construction process. While ABS has made efforts to address these issues, some clients have reported feeling frustrated and ignored. This is an area that the company could improve on to build trust and loyalty with their customers.