Is a Refurbished Gigabyte Laptop Worthwhile?

[vectorx5000]

I am trying to decide which of the following laptops to buy. They have roughly the same specs but I don't know whether getting a refurbished Gigabyte laptop is worth it. It only comes with a 90 day warranty in contrast to the 1 year warranty offered by Dell. These all have 4k displays.

 

Refurbished Gigabyte AERO 15: i7-9750H, GTX 1660 Ti, 16GB RAM, 512GB SSD - $1250 direct from Gigabyte

Refurbished Dell XPS 15 7590: i7-9750H, GTX 1650, 16GB RAM, 512GB SSD - $1450 direct from Dell

New Gigabyte AERO 15: same specs as refurbished; from amazon - $1500 from Amazon (easy returns within 30 days)

New Dell XPS 15 7590: same specs as refurbished; currently $~1650 but will probably be lower if there's a sale

 

These are significantly cheaper than the comparable thinkpads or the Yoga C940 that I was also considering so I eliminated Lenovo from the running. I really don't care about the performance delta between the GPUs of the two laptops as I'm not primarily going to be gaming with it. I'm more concerned about dealing with issues with the laptops if they arise and getting adequate support. If anyone has had experience buying either a new or a refurbished Gigabyte laptop or can otherwise advise me I would really appreciate it.