Today many individuals and institutions have been working with storage units. To rent a storage unit seems to be a strategic option for them. Moreover, if they have some goods or documents which are quite valuable or confidential, to entrust them to the third party with more sophisticated facilities is a good idea for the short term. It is always better to have your own storage unit as sometimes there are some limits as you work with the third party. In example, not all are storage units available for 24 hours. You are going to get limited in access as you do not work in partner with the company which has that facility.
Thus, it is quite important for you to ensure that your storage unit works in 24 hours prior to the deal. The reason is that in some occassions you require the access to the documents or need the goods in unexpected time. Suppose you rent storage units that are available in 24 hours, that is not going to matter at all. It is crucial for everyone to ensure that the facilities really meet what they need. You do not need to rush your options.
As the cost to rent the storage unit is not so cheap, to consider some aspects before you decide your option is likely to be a must. Afterwards, based on those aspects, it is possible for you to arrage a shorlisted service companies. To make it faster, you may observe the options based on you priority.
In the other words, actually you do not need to observe all of them. As you think that the top options are quite qualified with your needs, you can just try to contact them. On the line, you should confirm all of the facilities that they offer on the website as sometimes some of them has changed.