I have sidis and atacs but I have friends that have shimanos that aren't all that bad they last about a year of daily usage I have heard pearl izumi is a good brand from a mtb friend of mine and I have heard the same about sette(pricepooints house brand

I got sidis because the are supposed to be durable and so far they have been great
I hear pearl is wider and run a little big some times and I have been tol the settes are rebadge pearls
the shimanos seem like a good all around shoe at a good price point
I have seen lake and northwave shoes on sale at nashbar and other places for around 50 bucks I haven't tried em but they look like a good option for a shoe