welders... what to get?

[super vw]

http://www.harborfreight.com/cpi/cta...emnumber=42337
would this be a decent one? a friend of mine says "get the most expensive one you can aford" it has a 20% duty cycle so thats not all to bad (more the better right?)

kdanie, do you/could you get pics of your 911 seat mounts? i have some 944 seats i want to put in my 74 super and im looking for ideas on what to make

Thanks guys!
Jon