Hi Laura,
First of all: spent the time with your friend!
Second: Do not visit Apeldoorn. I did read today about the second robbery in daylight. Again there was a bag stolen of a woman. My mother knows the first and she has broken her shoulder at two places. The second had injuries as well.
Third: It is cold! Today I took the bike to the station and waiting for the international train to the airport. The first train went to Amsterdam and then I have to switch from train. This train went, the other train should come and they announced it had a delay of 45min (not any trains in the meanwhile). I went back home, because there is no place to stay warm and it was really cold. Last week I went three times to Adam and three times there were interruptions around Hengelo. Therefor buy something to drink and to eat, because you can never trust the Dutch railways. As for the international trains: you can take them with a normal ticket when you are travelling through NL.
So I suggest to bring your warm clothes with you. I think it will still rain a lot when you visit NL. If you dont have gloves (or you do not what to think about the weather) you can buy yourself here a pair. I will try to keep an eye on the news about the weather. I never do that, because it makes me feel depressed hahaha!
I dont think I ever have been in Henglo
Enschede is a good place to shop, I think. When I was there, there was no time to see of I was right.
I hope my information helps you a bit....
Bon voyage!
Dore