Hey, Kim ! I agree with the others who've replied, you need to try it to see how your body will react to the evening workout because every one is different. Some people can workout at night and still get a good night's sleep. I do find that if I do an intense workout an hour or so before I go to bed, that does cause problems for me.
And I find evening workouts difficult if I did have a busy day at work. I might be too fatigued to workout at my max. That's why I tend to prefer working out in the mornings. Morning workouts invigorate my day. Also, it's much more quiet at the gym. Depending on how late your workout is going to be, gyms can be packed in the evening. So, you too may find working out in the morning more convenient just because the gym will be quieter and you don't have to fight with people for equipment. That's one of my biggest complaints with evening workouts i.e. too many people.