"Doola" is a service that specializes in LLC formation, particularly for non-US residents and Decentralized Autonomous Organizations (DAOs). It offers a range of services from formation filings to bookkeeping software and CPA Consultations. However, customer feedback is mixed, with some reports of unresponsiveness and delays in services. While Doola lacks a mobile app and there might be potential hidden costs, its specialization in non-US LLCs and comprehensive compliance packages make it a worthwhile consideration. It's important to note that while many customers have had positive experiences with Doola, there have been some negative reviews as well. As with any service, it's recommended to do thorough research and consider multiple sources before making a decision.