After looking at comparable housings I couldn't go past this one for features & value. Nauticams port adapter has allowed me to use my existing Subal ports and the fit is fine. Quite impressed with usability & quality. Other manufacturers should take note that built in redundancy and hefty retail pricing is not a smart way to go. Housings & associated parts are major spends. No one likes to put good gear to pasture so Nauticam got my vote & $$.