Your concern about milk residue is the right one to focus on, since bottles with narrow necks can be tricky for any machine. In a small kitchen, the footprint question matters as much as cleaning performance, so it may help to measure your actual counter depth before committing. On drying, results seem to vary by model and by how tightly parts fit, and pump wear is a real long-term cost to weigh against the convenience. Since your second is due in July, you have some time to compare return policies and replacement-part availability before deciding.