A great alarm system - simple to use, lots of features - hence why I chose this product over the competitors. The hub system itself looks great, the outdoor siren isn't plastered in gaudy colours, the calling of multiple phones/text messages and alerts are a great additional feature and well worth the £9.99 monthly subscription fee for extra peace of mind. Whilst there are some odd infrastructure and hardware decisions made behind the scenes with this solution, like for instance how the pairing works, the contact tamper button (which also acts as a reset function, go figure!) and what happens if things go wrong (you must contact support for everything via their website and there's a lack of self fixing, which being a very techie guy can get quite frustrating), once it's up and running, it is stable and works very well. I did have some initial trouble with my specific install but working with the support team, who are absolutely fantastic I must say, those issues are now resolved. Would highly recommend this to others.