I've played it for about 3 weeks, and I've found only 1 glitch. Occasionally if you leave your lot then go back to it (only happens with homes with a foundation) all Sims will be outside of the house. This is normal, but some Sims could spawn in the foundation on porches and such, so they would get stuck. This is fixed by viewing another lot or just making another Sim leave the lot and follow them, so the will not spawn in the foundation. Thats the only glitch I've found, and I'm not sure if it happens in Sims 3, but it does in Pets, I would reccomend pets as a better version, since its basically all of the Sims 3 game mechanics, but with pets added into it, plus a different town = different Sims to see.