Pros
Plenty of career development opportunities and support. Dedicated time allocated each month for self-guided training. Benefits are good; many healthcare options, matched 401k contributions, discounted stock options, etc. Discounts available on Apple and 3rd party products. Great managers and co-workers (depends on store though). Usually a very positive atmosphere.
Cons
It's a retail job with retail hours and slightly above average retail pay. Discounts aren't particularly deep and Apple makes a tidy profit from its own employees' purchases. Compensation doesn't match the skillset and knowledge required. FRS role is a blend of Genius and Creative whilst getting paid the same as a part-time entry-level Specialist. Specialists who are routinely selling $100k+ of goods per quarter will never earn even $40k annually. You definitely wont be able to afford a mortgage. You'll probably be grateful to afford rent within 5 miles of an Apple store. Just thinking about it will ruin your day. Apple is no longer allowing employees to specify a preferred weekend day off, so you get to pick a day off Mon-Thurs and hope you don't work all weekend. You're dealing with the public all day, some of whom have no sense of responsibility (or sense at all). Too many people fighting for too few higher-paid positions.