I had to spend $1300 on LL Beans, so I bought 2 e-gift cards; 1 was $7xx, and 1 was $5xx. The $5xx one ended up having an issue, so I contacted Cardpool and the representative said the card has to be "phone order" only so they can offer a refund or have me sort out on my end. The sale on LL Bean's website was about to be over, so I placed the order with the $5xx charged to my credit card in hope of getting the gift card resolved before they ship (they charge after shipping). The item went out of stock, and I waited 3 weeks and received a call saying the $5xx gift card was too suspicious and they cannot apply it. Cardpool refunded my money and I was ok.
I placed another $3xx order and bought from Cardpool to save money. It worked without an issue.
Lastly I bought a $1xx REI gift card, also no issue.
I think people giving bad reviews need to realize that Cardpool is probably not a big e-commerce merchant with sophisticated systems to deliver e-gift cards immediately. I really think they have few people checking emails and sending out codes manually. It's not Amazon.com or PayPal.com, so people really need to give it some slack. Just know that:
1) Don't expect quick turnaround on weekends, but unfortunately that's when most sales are.
2) If there is an issue, don't expect instantaneous support.
3) Don't buy a gift card and just sit on it. Use it immediately.
Overall, I'd buy from Cardpool again.