I am using this polar Aqyahot 15l gyger fr om last 5 years and this is my best experience. Sometimes it get open for full day but it never burst. It is an user freindly gyger. All have to do is to open the plug and take a warm bath. Its durabiloty is really fabulous I never spent money on it for repairing it. Its style and design is so attractive and come with attractive and shinny color. Its color never be fade. It has an cylendrical shape that looks so attractive. It can easily fit in any wall. Servoce and support is not so good but there is no need for service