I know many travelers say there are so many places to see, they don't believe in going to the same place twice. First of all, despite the devilishly selfish feeling of wanting to keep this little gem of an experience to myself, I highly advise you to visit Lisbon and I insist you stay with Thomaz. I further advise you to return as quickly and as often as time and money will allow.
I won't spoil any of the surprises (which he will design specifically for you-your own bespoke experience), except to say the climb to his flat is a bugger, but it will be your saving grace after the copious amounts of glorious Portuguese sweets you will indulge.
The flat is meticulous, amenities provided (soap, lotion, deo., shampoo, towel, hand towel, toothpaste, and blow dryer). You are welcome to regard Thomaz's home as your own for your stay and everything you need to sustain yourself is within walking distance. Note: Western Union is best for currency exchange, not airport-banks don't exchange US dollars. The taxi to Thomaz should be about 7 euros, and bring comfy sneakers-no heels or non-broken-in shoes.
You will leave feeling cared for, indulged, and feeling slightly sad because you are leaving behind a friend. Thomaz, thank you for your generosity of time, effort, advise, and conversation. You created a unique moment in my personal universe that will never be duplicated and will be remembered always. Obrigada old friend.