Although we did not meet Karen, we found the place with breeze with a taxi that is about 5mins away from Enge station (we had huge luggage :D). Walking to the station was an easy 10mins or less or it could also be reachable by tram then 3 mins walking. Karen was very friendly and approachable throughout our communication (probably could increase the frequency a little? :D) and left very precise and accurate information for the check in to be smooth. It was a nice, cozy, quiet and clean apartment with well equipped kitchen. In a great location with tram rides to city center in about 10mins. Only downside was no lift. But if you're looking for an affordable and a place close to the city and train? Try it :)