Loads and loads of websites out there using Wordpress. The main problem that I’ve found is when you use plugins for specific functionality, then they sometimes don’t get maintained by the original developers, which is especially a problem when wordpress gets a new version. Paid plugins from bigger software houses are more reliable, but that depends on your budget. There’s plenty of choice though and all the sites I’ve put together have all worked and run fine for years, even if hey need a bit of TLC when a plug-in needs changing.