Good grid.

Well-constructed grid. Quick and very easy, but satisfying to complete.

Very satisfying

Easy to get the hang of the connections, but trickier to get the groups

Thanks all for your feedback. I think as a puzzle setter, you never want your puzzle to be unsolvable, it must be enjoyable to solve. Even if it's a little too easy! I'll try to make the next one equally as enjoyable but perhaps more of a challenge...