Le Creuset was a HUGE disappointment for me. Had a classic red 5.5 qt Dutch oven, first quality, and the lid was warped like crazy. Pot was a gift, so I did not inspect it prior to use. Le Crueset sent another lid that was not a lot better (base was pretty square/flat). Also, the crappy phenolic knob stripped out, and would never stay tight even when new. They sent one of those to me as well. Internal glaze became porous, despite never being machine washed, only hand washed with a sponge and soft nylon brush. Pot stayed with ex after divorce, and I found a free 5 qt cast iron Dutch oven made in the 40's that is better built. Lid fits perfectly and is tight, and I seasoned it to perfection after I bead blasted it.
I bought my GF an enameled cast iron dutch oven from ALDI a few months ago, and it is REALLY nice, and not just because it was $29.99... Lid fit is very nice, the enamel coating inside is flawless and beautiful, the outside finish is very good, with just a few "ooops", handle design is better, lid is internally dimpled (LC is not), and it comes with a stainless steel knob, rated to 500 degrees (LC is plastic rated to around 300). It cooks/handles every bit as nice as the Le Creuset, and is a steal. IMO and experience, LC is incredibly over priced, even for true first quality products.