I did Fullstack dev, full-time. The professors are incredibly prepared, they know that you need to know and their empathy with the students are so nice. If want to enjoy the travel I recommend studying JS or Ruby before, at least a cheap course, then you can learn faster in LW. After the Bootcamp you can continue learning because LW gives the resources to do it. They have an incredible community in Slack that someone always wants to collaborate with you on your doubts.
The only problem that I found is with the job support, that part is a little poor the support that they give you.
You must realise that 9 weeks is very good to learn the first steps in dev, but after LW you need continuous learning and learn JS maybe React. I recommend LW even though these two things because if you want to be a good Web dev, you must learn most of the things yourself, and LW give you what do you need to be able to do it.