Thought I would try this as its cheap enough. First impressions were poor - sticky, messy, what's all this water for, etc. However, once I'd used it, I love it! It works. Stick a range of things together. So:
Upsides:
- Strong;
- Fills the gap;
- no need to mix, like Araldite;
- don't need very much at all.
Downsides:
- No "grab" at all, so everything needs to be clamped/taped in place;
- Sticky/messy - need to be very careful;
- easy to over-apply;
- takes a long time to set.
However, all in all, good stuff.