Any experience with HiTi printers or competitor recommendations for the below need?

I'm using a Cannon EOS Digital Rebel as a youth sports photographer and need a quick turn around of about 20 images. I plan to show the parents to get input to make sure they like the action photo I selected of their child and to share with them a group photo at the end of the game. I expect to shoot prior to the game and the first 15 minutes. If I were to purchase the product below I would only print the group photo as a 6x8 and the other images would be smaller to keep the print turnaround time down (multiple images per sheet). I considered using a laptop computer to review the images with the parents. The expense to purchase a laptop would be greater and the photo quality would not be represented as well through a screen.

Product considering - Hi-Ti 730 DPOF printer for $399.00. It is a Dye Diffusion Thermal Transfer printer with an overcoating layer. It can print 4x6, 5x7, or a 6x8 borderless photo within 2 minutes. Refer to the HiTi website for more details: www.hi-ti.com.

Disadvantage - It requires electric power and is not run off of batteries. I would need to use the parks electricity.

Advantage - It will accept my CF Type II card as input and print based on DPOF (Digital Format Order Format) parameters that can be set while viewing images in the camera.