Honest opinion? I'm in a strong love/hate relationship with this game. There are times when it frustrates me to no end, but I also can't live without it. Ultimately, the love outweighs the hate, but there are still some really annoying things that I think people should know before buying. My three main gripes are:
1. Sims are dumber and more stubborn than ever. They were advertised as smart, but if a sim who is five seconds away from peeing themself autonomically chooses the toilet three stories above rather than the one next door, then takes the longest and most complicated route to get there, and then suddenly claims they can't reach the object even though there's nothing in the way, that's not intelligence. If you give them a task, they will sometimes just drop it out of their queue for no apparent reason, and if you tell them to cancel something, they will keep doing it for 20 to 30 more in-game minutes, to the point that I've gotten used to just resetting them instead.
2. All show and no substance. This is a recurring issue that I've seen many others complain about: Everything looks pretty, but leaves something to be desired gameplay-wise. Now if this only applied to the worlds, which are stunningly beautiful, but barely interactive, it wouldn't be so bad, but unfortunately, it also extends to gameplay elements such as pets for example, especially cats. You can spend all day selecting from a wide variety of premade breeds, mixing them, painting fur, choosing traits and even clothes, but in the game, those cats just sit around in your house doing nothing interesting, in stark contrast to TS2, where they could learn tricks, get jobs, etc.
3. Last but not least: Bugs. OH MY GOD, the bugs! I've never played a game with so many technical issues, and while I used to look forward to the monthly patches in hopes that they would fix a few things, I've come to dread them because they usually introduce even more bugs, some of which have persisted until today. If you're new to TS4, you will often find yourself overlooking features, not because they aren't in the game, but because some random bug is preventing them from working properly. This seriously compromises the joy of exploring because you'll inevitably hit an invisible wall at some point.
But despite all that, the game also offers lots of features and improvements that I wouldn't want to go without, making a return to TS2 impossible for me (not just because that game and my "new" computer won't get along). This includes:
- the best version of CAS we ever had,
- an improved build mode that allows you to copy and move rooms as if they were objects,
- beautiful, unique worlds that you can freely travel to at all times, no need to start a new save whenever a new world is added,
- a gallery full of amazing downloadable creations by other players,
- new spins on DLCs from past games, but also brandnew content you've never seen in The Sims before,
- charming gurus who do monthly livestreams and answer questions on Twitter,
- a game that is still in development, with many innovations and features yet to come, so even the things I criticised might still be fixed eventually.
Personally, I don't even want a potential Sims 5. I want EA/Maxis to keep working on TS4 to make it the best it can be, because it's already a good game as it is, and I'm sure it will become a great game once the aforementioned problems have been addressed. That is my most honest opinion.