Aruba Networks Wireless WAN is an excellent solution for small to medium-sized implementation, especially on-premise. The ability to centrally manage all policy-based access requirements for both registered users as well as guests using the portal is effortless. This is backed up by good documentation which is available and excellent vendor support (HP).
We work in the electric industry. These should not be used in a high-heat environment. We like to keep the temperature of the room in the low 60's so they are not suited for our Substation locations due to extreme heat and cold. However, they perform great in a server room.
Dell ProSupport is outstanding. Dell ProDeploy is likewise outstanding. I prefer them even over traditional Cisco support. I've had repeated cases where Dell immediately addressed or fixed an issue with US-based support, including firmware hotfixes. Not even Cisco can boast that.
We used Xirrus wifi before we moved to Aruba. Xirrus is a great niche brand that has been sold to other companies a few times in the life we used the products. This negatively impacted the product availability in our country, local support, and amount of implementation partners. Due to Aruba their broad product range, availability in the market, and knowledge with implementation partners we feel that we can build upon their products not only for a product cycle but for the decade to come.
I selected Dell mainly due to previous experience using them in a business environment. I've never had a unit fail on me and when my budget for equipment like network switches has been less than a training class on how to use those switches, it's incredible to be able to find quality equipment at the price point Dell offers and even more so when their enterprise support has been as excellent as I have been accustomed to dealing with. In all honesty, even if I had a larger budget, I would have bought these same switches since they were exactly what I needed to suit my needs. We looked into HPE/Aruba network switches, and while they would have performed everything we needed and more, they were almost four times the cost of these Dell network switches. That's a hard sell when it comes to planning a tight budget.