I like how easy it is to install in new construction projects or retrofit existing structure with this product. It's very simple for anyone who has never installed powerpacks before. The installation process took about 1 hour per pack including setting up grounding systems. There are many options but if you know what your looking for they will help guide you through all those choices as well. If there was anything i disliked its hard finding someone locally to do these installations so far we have done them ourselves which takes time away from other work. We use our power packs at my job building houses and apartments mainly using solar panels. This helps us store excess electricity generated by the sun during times where demand exceeds supply allowing more production when needed without having to go back into the main line distribution system.