I think Sims 4 is a very fun game. Yes I absolutely miss things from other iterations of the series and I don't doubt when/if a Sims 5 comes out I won't miss things from Sims 4.
If there's something I'm really wanting to play from the others then I'll play that series. And I'm very hopeful that Sims 4 will give us what weren't looking for before it's over just as the others have done. I also live the update in looks of the Sims. I find it hard to play very long in other Sims games because graphically Sims 4 is so much better.