I have recently bought a lap top that runs vista 64 bit could you answer a question ?

will this version cause any troubles for me ? its an acer and it has lots of great things about it 4gb ram 360 gb hard drive it runs tuba sound i know nothing about tuba sound but u could tell me if its good or just a reg old sound system dual layer cd dvd rom with light scribe i think 1695 intel graphics accelerator 4500md is that good ? intel duo 2.ghz 800 mhz mb L2 cache again any good ? some say the 64 bit is not compatible with programs but i have had no troubles running office 2007 or installing my printer or even aol for that matter ...i just need to know if it was worth the 550 bux i paid for it new ? should i hold onto it or get rid of it f