Grinuy's place is a fantastic find and in a very central location of Lisboa. The check in was super easy as he has a lockbox that means he doesn't need to be present when you arrive at a later time.
The duplex was very well kitted out with a super comfy bed, full kitchen and a glorious shower/Bath.
Grinuy kindly left us a bottle of wine also on our arrival which was a beautiful touch.
There is internet and this is fast and reliable. The location is very close to Bairro Alto and also the renowned Park Bar (though I wouldn't put that on the top of my Lisboa list of places to visit). We had a rent-a-car and there is no real on or off street car park nearby. We ended up putting it in the nearby pay car park which is about 150meters away at the top of the hill. Approx €15 per day.
I'd highly recommend this place and would easily rent of Grinuy if I come back to Lisboa.