The customer support from GPS is reportedly outstanding via RIU and I haven’t had any trouble. But, considering the credit card processor they use, decided for future business to go with mail-in payment. Reviews on other sites for GPS are generally very good although there are also some outliers.
Their 420 sale is still on at the moment though they may have a limited supply at the sale prices. Considering you can get some pretty nice looking crosses at an inexpensive price point, just about anything they still have available seems worth a try. Some of their “discontinued” crosses are listed at $22 for 10-11 seeds.
Those who sign-up for an account end-up earning bonus points that can be applied towards future purchases, as well. They also intermittently run reverse auctions. If you are patient, you can sometimes pick-up packs for even less than the sales prices for 420. The owner is basically using some slick marketing tactics to gain traction in the market and it seems to be working. Recently they’ve increased prices and reduced rewards. So, whether they continue to have a low-priced point in the future is to be seen (obviously, verified results would be the most important thing).
My current stable for GPS as collected over the past several months, nothing run yet. Should be fun: