One of the things that I always check before renting an apartment is the water pressure of the showerhead. And while it's not exactly a deal-breaker, it's definitely an added bonus. For example: My first apartment in college had the lowest of the low water pressure that I've ever come across. In fact, I'd qualify it as a mere leak coming from the ceiling. And so would my old college roommate who recommended this Fire Hydrant Presidential Showerhead from Water Management.
This showerhead is touted as the Harley Davidson of all showerheads: it promises insanely strong water pressure for an invigorating shower, and it's built especially for homes that suffer from low water pressure. According to the spec, there are jets that shoot out from all angles, and the spray pattern is completely adjustable. Also? There's a 21-day guarantee on it, so you can return it for a full refund (no restocking fees and postage reimbursement!) if it fails to deliver.
Available at Water Management in five different finishes, price varies depending on finish.