However, the downside comes in usability and support. For example, the Glacier Protocol was designed to serve a similar niche to Casa. But in initial testing Glacier took 8 hours to setup and 4 hours to withdraw coins[1]. Even if practice can reduce this time, it still will require time on the order of hours for each transaction. Glacier involves hundreds of dollars worth of equipment, a complicated process that involves modifying laptop hardware, using the command line interface, and installing operating systems, with no reliable support in case something goes wrong.