Crib/changing table combo set

Jasmine

Hello mom's! I'm wondering for all those moms out there your opinion on crib/changing table combos. Lately it seems like the trend is the attached and then it disassembles and becomes toddler bed. But wondering if a changing table is useful or a waste? Many say that you simply change baby's diaper on floor, bed, sofa wherever and that a changing table is a waste. Thoughts?? I'm a first time mom so any advice is helpful. Thanks!!!