Clause 1: you disclaim any fitness for purpose? Not only is this likely unenforceable in many jurisdictions, it seems distinctly weaselly to sell a product and attempt to claim that in the fine print.
Clause 2: does that mean if it erases my entire hard drive, you're not responsible? Seems a bit not cool; though I can understand wanting to avoid claims if it crashes and data is lost, it seems overly wide-ranging.
Clause 4: I have a perpetual license, until you decide it's over for no reason at all and that's that - in which case I get no consideration or refund?
Clause 5: as csense mentioned, at least parts of this would seem unenforceable too.
I guess maybe it makes it seem worse that it's all laid out starkly without all the jargon to mask them; they're not uncommon clauses to include in such agreements, of course.