Face-lift will not be such a bad idea for Lao Plaza. For the rate they charged me with, I would expect a newer - hotel with a fresher look. The room and bathroom was clean, but I would say that their almost-edwardian furniture was not neatly preserved enough to be called vintage, and they might as well consider replacing them.
It was also too bad that I had to pay LAK100.000 per day (equivalent to USD13) for an unlimited in-room internet access. I would normally expect that a hotel with the size of Lao Plaza would already provide this complimentary as part of their facilities.
The staffs on the other hand were super friendly and helpful, they would know you by names which is one of the superficial hotel values I favor. When I mentioned staffs, I meant all of them - the chauffeur collecting me from airport, front desk agent, housekeeping staff, everyone was friendly. And most of them speak English too, good for me as I then didn't feel lost in translation.
Location wise, the hotel was great. Arriving Sunday morning in Vientiane while my business meetings didn't start until Monday, I took time to wander around the nearby surroundings and found that the hotel was only 15 minutes walking from Mekong river! There is an evening market open everyday by the river, and it was a good spot for souvenir shopping - they sold some pretty cheap good-quality Sinhs (Lao skirt fabric).
Food in the hotel was OK, typical hotel breakfast and menu for room service. But I did try their spicy papaya salad, and finding it quite refreshing (careful, it's hot!).
They have quite a complete gym equipment set despite the small gym area. At least 4 treadmills as far as I remembered.