If you've never bought a system at launch before ...
Systems at launch generally have some problems. A good launch will generally have (most of) the problems isolated as software problems that are 'mostly' fixed by patching within a couple of weeks; a bad system launch will have a significant hardware problem that kills systems that isn't resolved for months.
A system freezing is generally not something to worry too much about as long as it doesn't happen regularly. If it is something that is common and/or reproducible contact Nintendo Support.







