Which travel system to pick??

I really don't know which travel system to get. Both seems great. I like the even flow gold sensor safe one better than the maxi cosi. The thing is I already got the maxi cosi delivered to my house because I thought the even flow gold was way more expensive. But I found a lower cost one about the same. The maxi cosi has a lot of different way you can turn it into. But the evenflo which I really love has The smart technology which alerts you if anything is wrong. The only position that the even flow can do is that the car seat straps to the stroller. Which one do you guys like better? And which one do you think I should get?