Would someone let me know once I start this new 252 if its hard to understand or use?. Also should I have purchased the mts 225 instead to learn tig on?. Aluminum is what Im wanting to learn on. Up to 1/4 inch I dont need or want a water cooler. No need just want to throw dimes down actually on thin material I need advice. Thank you.. Also why did everlast quit making this unit??