My sister and I went to Lisbon for a quick weekend getaway, and even though it was pretty cold and rainy, we had a great time. The apartment was very conveniently located...just a short walk from the famous number 28 tram, as well as cool neighborhoods such as Barrio Alto(good for going out at night....and I'd definitely recommend a restaurant called Bairrices for their all-you-can-eat tapas taster menu!)
We only stayed for 2 nights, so the coffee machine and the corkscrew were all we needed, as we didn't bother with eating-in, but had we been there longer, the kitchen seemed to well supplied for cooking. The double bed was plenty big enough for my sister and I to share, and the other living spaces were clean and comfortable.
It's worth mentioning that the apartment is on the 3rd floor(with some fairly steep stairs). This wasn't a problem for us(and fit in well with the hilly Lisbon theme!), but worth considering if someone in your party has a hard time with stairs.
Rita, who met us to check-in, was quick to respond in communications leading up to our stay, and was available if we'd had any issues while there(which we didn't). The next time I'm in Lisbon(which I hope to be, so I can experience it in the sun!), I'd stay here again if it was available.