They have had a bad rep for a long time. I ordered from them when I first started gardening some 30 yrs ago. I ordered a Hydrangea, Lily bulbs, dayliies. 30 yrs later they were surviving and doing well 5 yrs ago when I sold the house. Their plants are small so you may not want to just store them but get them in some good soil immediately.
I have ordered some bulbs a couple years ago because they sent me a coupon that I could get 20 in plants free. Not the coupon that if I purchased 40 they would take 20 off. So I ordered just 20.00 for the free plants to see if they were bad. The bulbs were good. I think their plants are small and need a lot of tender care. They are not garden ready to throw in a hole and fend for themselves.
I have ordered from places like Michigan bulb that send small plants that I have a raised bed, that I call my nursery. The area consist totally of my home made compost soil. When I get the plants I put them in that area for at least a year.