For the fleet the Pharos-type can push the boundaries of exploration by acting as a resupply hub for shorter-ranged vessels that would otherwise be confined to the edges of Federation space, as well as support a substantial fraction of Starfleet at any one time. Had a Pharos-type been within ten light years of the Kzinti border then a number of offensives could have been significantly expedited with a source of antimatter close-to-hand.
The base's armament is acceptable for its intended locale a distance from the border, but there are understandable concerns that it represents a tantalizing target to hostile powers. As it stands the primary shortfall is that the Pharos-type will struggle to act as a strongpoint in the event that hostilities are waged within Federation territory, for all its virtues in supporting expeditionary efforts. It is understood that there was a conscious decision to focus on other capabilities, and projections are that the stations will come into their own after several decades of natural expansion put them deeper within Federation territory.
Of note is the station's egalitarian approach to civilian usage, which will allow a substantial coterie of vessels to dock and make use of its refueling and repair services, the latter of which represents a major advantage to non-military vessels that often have fewer layers of redundancy for key systems and can often accumulate wear over time that borders on the unsafe. Not only will the station be a useful intermediary point to reduce travel time, but its fabrication facilities can produce many of the minor but difficult to source civilian-grade parts.
Most important of all is that the station is cheap - relatively speaking. Shipping twenty million tons of material for assembly on site is far from a simple logistical task, and the saving grace is that the design exercises a certain amount of frugality that means the most valuable and expensive components only make up a small part of the mass budget. Initial projections suggested that eight stations should be constructed, but that number has been revised up to ten in light of the less-than-expected costs associated with the design. The various transport services and guilds of Federation Member States will certainly be happy with the contracts, and the Design Bureau closes their first official project out of the Utopia Planitia headquarters.