Pajamäki is situated aproximately 20mins from the Helsinki city center. You can travel by bus or train from there here easily. If you come from airport, you can use the airport train and change it to bus or train when arriving.
If you are with a car, you can park here on the street for free.
My apartment is 43m2. The surroundings are quite and relaxed, nature, golf course....and in 2,5km (walking) distance there's shopping malls (Kaari and Sello).