the 410 is a great head, i was using one for many years with a manfrotto 058 tripod, which is a hevy beast, but very nice to work with in heights for 40 to 150cm. I had to replace the 410 about a year ago, because the gears had worn out, but I had used it for a long time on a nearly daily basis.
I only took it out when i was working with an assistant, as it was just too heavy. for working on my own I bought the 2540 without the leveling, but somehow with a 410 head the tripod is not rigid enough. it is ok with two sections extracted, but with three or worse with four the whole thing starts to wobble. so for this tripod I now use a RRS BH45, which is just like it was made for it.
good things about the 410: reasonably priced, easy to use, pretty precise, not too heavy (for a geared head)
bad things: a bit tricky to mount an Arca-style clamp to it, a bit play in the gears, gears wear out after thousands of hours of use, the camera has to be reversed sometimes to reach fully up or down.
good things about the gitzo: reasonably priced, easy to use, pretty precise, very light, beautifully made
bad things: not as rigid, makes you lust for a carbon fibre tripod
one thing which is a total must with any geared head is a L-plate. only with the camera on top of the head all movements are possible.
once you started using a geared head you won't go back.
my current setup: Gitzo 3341xls with an Acratech leveling base and a Multiflex head. indecently expensive, but probably the last tripod I will buy (hopefully!)