How good is the Atmos Ascent's bonus? Earn 70,000 points and a $99 Companion Fare

Atmos Rewards offers fantastic value to Alaska Airlines and Hawaiian Airlines flyers, but I love this loyalty program for its attractive award rates with Oneworld partners, such as American Airlines, Japan Airlines and Qantas.The Atmos™ Rewards Ascent Visa Signature® credit card is an excellent airline card to earn Atmos Rewards points. Its current welcome offer for new cardholders is especially compelling: earn 70,000 bonus points and a $99 Companion Fare (plus taxes and fees from $23) after spending $2,500 on purchases in the first 90 days from account opening.With this solid welcome bonus on the Atmos Rewards Ascent, you may be wondering just how good it is. Here's my take on this offer, how to maximize the bonus and who's best suited for it.How common is this offer on the Atmos Rewards Ascent?The Atmos Rewards Ascent card is about a year old, but we've already seen several welcome offers.Previous bonuses have ranged from 60,000 to 80,000 points, often paired with a $99 Companion Fare (plus taxes and fees from $23). Some also included a future flight discount code, though those offers required higher spending.400TMAX/GETTY IMAGESThe current offer of 70,000 bonus points and a $99...