As a counterpoint, I got a similar mailer in 2015 (7.9% for life) and searching Google for this CU I had never heard of before led me to these forums and kickstarted me getting my revolving balances paid down rather than just letting them stagnate as they had for years.
My scores were about 700 at the time (solely due to 90+% aggregate utilization; had a lengthy credit history with no derogatory info and no recent credit-seeking) and they approved me for $15,000 (then a $15,000 personal loan shortly thereafter with another mailer after joining). Considering the extremely high balances and every card I had being essentially maxed out at the time, my own experience was very good and I am still very grateful for that offer as I was paying thousands of dollars a month in interest and making no progress on paying down balances back then. This allowed me to clear off a card with a promotional balance transfer offer and over the next year I was able to finally start paying off thousands of dollars of balances every month rather than mostly interest.
I still have the card but have found it to be of limited use once it helped me rearrange my debt and the card was paid off. The rewards are not very good, I received my one and only targeted spend offer nearly 5 years after the account was opened, and while they do send out regular convenience checks the offers often have a BT fee in addition to a promotional APR (i.e. 3.99% for 12 months but also a 3% fee).
If one can qualify for a more traditional 0% for XX months with 3% fee or something similar on a card that may prove useful long-term, I would recommend going that route. Otherwise, the NASA offer certainly gave me a huge lifeline and certainly beat paying 13-25% interest as had been the case before.
@Anonymous I'll never forget that feeling of getting the SP 30K limit!
