If you plan on carrying them past 9-12 months, I'd go Ergo Baby. I have a bit of experience with both, and Infantino isn't going to last as long.

How old is your baby?

I use a tula and it is so beyond worth the money for it my daughter loves being out in hers and hates getting out she will cry when we take her out LOL

I have a beco and I absolutely love it. It's not hard to get her in it once you're used to it. And from experience as a nanny, it is still comfortable and easy to use with an older baby as well. It disperses the weight well and supports your back. I got mine for $100 but it's worth it. You can look for them used as well. The only thing I've heard about the infantino is that people have had it cut circulation to their babies legs. And I've noticed that babies legs hang down straight in the infantino and you want them to be in more of a sitting position because it's better on their hips

I bought a used Lillebaby. But my little one isn't here yet. 💙