Filmon is a nice person. He helped me with my luggage and was generally friendly and responsive most of the time (though sometimes you need to wait for an answer for a few hours).
The room was ok. The apartment has 3 bedrooms in total, just keep that in mind when you book it because that means there might be a queue to the bathroom in the morning or if you want to cook or eat in the kitchen then you may have to wait till other guests are done. But as long as you just communicate with other guests it's fine.
The kitchen has all you need, so you can cook there.
My biggest issue was the heating. First night it was not on at all. Then I asked Filmon to switch it on and he did, which was nice, but it was off again very quickly. And then almost every day i had to remind him to turn on the heating. So, if you come in winter let him know in advance if you need heating and what time of days (say at nights). The duvet was quite warm though.
One thing that was a bit annoying was the separate taps for hot and cold water in the bathroom sink. It's very inconvenient but it's pretty common in the UK so you may see that in any other apartment. The kitchen has a normal mixer tap though.
Also the shower was not hot enough for me and the temperature is locked so it doesn't get hotter. That might be just me because i didn't see other guests complaining. But you probably should check the shower when you check-in, and if it's not hot enough then ask Filmon to adjust it.
The building itself is very decent. There is a secure entry. Also there is a bus stop just a minute walk from the building, and it's very easy and quick to get into the city center.
There is also a mall just nearby, a big supermarket, a few fast food places, a convenience store just on the ground floor of the building.