Agreed, MD really is much better for that type of shirt. Have you tried it yet with a button down shirt? For me the shirt fell apart and I haven't spent the time learning how to make it work.
Render looks good!
If anything but the buttons fell off than that shirt was poorly modeled
The unconnected elements will fall off. Simulating clothing with accessories in MD is troublesome to impossible if they were not made specifically in MD. Some features of the program are so hampered that i can only assume its a intentional "sabotage" in order to prevent importing clothing made in other programs.
Things like, MD will combine surfaces into 1 so you cant texture in it, You can pin clothing or freaze the sim on certain elements but if you want to select specific geometry there is no option to select all connected geometry or UV islands (only for non native clothing), there are so many things that just don't work on non native clothing that make no sense unless its intentional.
I converted Hellenic for genesis 3 remale to gen 8 and used MD for the draping. I froze the sim on the belt and pinned the straps and the cloth arround it so it didn't brake apart