I have experience w/ the Ignition series and I would suggest staying away. The chair feels flimsy, poor lumbar support, and the padding in the seat is thin. Also, if you look at it, the front of the seat is straight across and with the limited padding it is hard. That starts to hurt the underside of your legs after a while. My company bought this chair for me and I actually gave it away and went back to a ripped 20 year old chair.
I believe we also have the volt and I'm surprised it's only $100. It's a steal at $30. Lots of padding in the seat, the front is a "waterfall" design and curves really well. It's our workhorse chair for the masses.