Started at $5k at 6-7 months went to $10k at 15 months went to $11k. I use it to automatically pay my monthly auto insurance and refill my starbucks card and EZ Pass. In less than 2 years I currently have $600 banked toward a 2018 truck (should be $1500+ by the time I use it for a new vehicle).
GM BuyPower card pays 5% back on anything toward a new GM Vehicle - very specific purpose, not designed to be a general spending card for points or cash back. Personally I have closed every Cap-1 card I ever had due to crappy Cap-1 front line service and high APR's compared to my other cards - it would take a lot to get me to ever consider opening any standard Cap-1 branded card today, but I find the BuyPower card very useful for MY purposes and while the $11k credit limit is on the lower side of most of my general spending cards, I pay in full every month and will never get close to using that limit so it's a non-factor.
There are lots of "prime" cards that open with low limits including AmEx, Citi, Chase and Barclays, especially with marginal FICO scores - if the benefits of this specific card are useful then consider it, if they are not than this isn't a card you should go for in my opinion (sure beats the Credit One, First Premier, et al offers). My Wife's Discover started at a $800 credit limit (currently $1200), her true TU score is 813 - she doesn't use it because of the low limit, but it'll grow.
BMW, Lexus, Mercedes, etc all offer branded cards - some are very specific as to rewards and others are lower limits starting out, most are not low APR cards - these are not general spend cards either (in most cases). Nitce cards are just that, specific purposes which may or may not fit your needs.
