What Raymo says is pretty much true. Like all budget units the LB needs some work to be effective and reliable. But once sorted out they perform as well as any other Dobsonian. I have a 12" LB that sits around because for 98% of the time my 8" f5 is so much easier to use. I was never that convinced by the gso mirror in my 12", perhaps the least corrected of my three gso mirrors.
If today I were to buy new I'd get a 12" SW from astroshop or somewhere.
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