We stayed here for a week with our two year old daughter and it was really ideal for our needs. Although it was first floor, the building has a reliable lift and the kitchen had all we needed to make basic breakfasts and lunches. The place is spacious and comfortable and Upstreet are really easy to communicate with.
Good points if you’re travelling with a toddler - the window blinds are blackout, the living space is separate so you can relax in the evening, the TV has Netflix. Points to consider - you can hear noise from outside and from the corridor but we wouldn’t let it put us off booking again. I think this is typical in an apartment.