Hi,
I’m in London and I’ve been using Sketchup since around 2013/2014.
I pretty much only use if for personal/home projects. e.g. Designing wardrobes, designing my garden etc. I also use quite a bit for 3D printing “solutions” for home problems. e.g. replacing a broken vacuum cleaner hose clip, corner brackets for making hardboard storage boxes that will actually fit in storage spaces I have. I have occasionally used it for designing jewellery components to be cast by others.
I have the last Alienware PC that could run Windows 7. I’m not really one for upgrading stuff if it does what I need to do. This is why I use Sketchup 2016 
I would class myself as an intermediate user. I’ve been using it for a while, but I learn only what I need to, to get the job done.