Honestly mama, depende sa lifestyle mo, I have friends na mahilig mag-mall at commute, and they swear by the 2-in-1 Doona type kasi convenient lang, one hand lang to move baby from car to stroller, walang hassle. But a few of us prefer the detachable setup because mas flexible, mas options ng stroller shapes, at puwede mo i-upgrade ang carseat nang hindi kailangan bumili ng buong system ulit. Try asking sa mommy groups kung saang stores they got theirs kasi ang cheaper dupes ay hit or miss eh, at gusto mo sure na safe talaga for baby!