What is the experience like for a visa run to Vientiane, and what are the best days to go?

A user shared their positive experience completing a visa run in Vientiane, noting a quick processing time at the embassy with minimal waiting despite arriving early in the morning. The feedback from others in the comments indicates that Mondays and Tuesdays can be crowded due to group tours, but waiting times in the afternoon tend to be shorter, reflecting improvements in the embassy's processing speed.