Base21 is consistently praised for its welcoming and comfortable co-working environment. It is an establishment well-suited for individuals looking for a friendly atmosphere and practical amenities in Busan. All reviewers highlight the positive ambiance, often describing it as having "good vibes" and being a "lovely space." 100% of reviews commend the "friendly people" and community, noting the amiable interactions within the space. The physical space is frequently complimented for being "very clean" and providing a "comfortable atmosphere." A notable practical detail is the availability of motion desks, which contributes to user comfort. Its location "near the beach" is also a valued feature. All reviews submitted are overwhelmingly positive, with no complaints or negative feedback regarding service, facilities, or any other aspect of the co-working space.