This is a quality laptop at a fair price, but the battery life hovers just below 80% of its design capacity.  At 494 cycles and 5.5 years, this isn’t unheard of and I did not choose to return it.  Took a while to get the battery conditioned to run at this level, and by then I’d already transferred my system to the laptop so I took it as is.  Other than that, it runs great, no complaints and can even run Windows concurrently (better than my newer HP laptop).  The lack of ability to upgrade RAM, HD, and graphics card should be considered when purchasing a MacBook - in other words, get the best one you can afford from the start.