Don't be distracted by the bonus. It's is a one-time event. The $300 fee reimbursement is a gimmick to reduce the annual fee. You can apply for the card, make the minimum required spend, collect 100,000 points, collect $300 in 2016, collect another $300 in 2017, and cancel. None of this has any bearing on whether this is the card you should use for your business travel expenses.

Priority Pass memberships are offered with American Express Platinum, Citi Prestige, and Chase Reserve. They are all "Prestige" level. They all permit access to the same lounges. They differ in whether there is an extra charge for guests, and in whether they support the Priority Pass mobile app virtual card feature.

The identical Global Entry benefit is offered by American Express Platinum, Citi Prestige, and Chase Reserve.

If you stay at Hilton Hotels you can earn 3 points per dollar with Citi Prestige or Chase Reserve, but you would earn 12 HHonors points per dollar if you used a Hilton Surpass credit card. The Citi Prestige points can be converted to HHonors points, the Chase Ultimate Rewards points cannot.

Bottom line: there is no feature offered by Chase Reserve that is not also offered by other cards. It's a matter of figuring out which combination of rewards and benefits is the best fit for your requirements.