Really impressed with the fitup and tight seal. Very few, and if any very small, gaps that could most like be adjusted out. Made a big difference so far with keeping the chill down. Windows unzip and roll/fold down very easily and I like the magnetic sleeve they fit in. Frame is solid enough for an arm rest. Actual install time probably 2+ hours (though an estimate as we originally assembled the frame & skins then later installed the doors on to the machine and other accessories/hardware had to be removed for install). Would, and already have, recommend.