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Rowland,
For mechanical quaility - backlash, Periodic Error and Tracking precision the Tak wins on quality and reliability - so better for astrophotography.
Although you dont say which Tak - I am assuming either EM200 or NJP with a tight gear set.
For visual and field astronomy using the Gemini Hand controller will make life very easy - Easy star alignment process (presently being minor bugfixed for Southern Hemisphere), No PC required for GoTo and some handy tour and local area identification features.
The Tak on the other hand will need something in addition to the standard hand controller for GoTo (New 3rd party Hand controller just released, PC/Laptop running planetarium software or one of the PDA options)
For Remote use the Tak Temma system suffers from not having a Home position and up until very recently they default to the Northern Hemisphere and have to be powered up with the "S1" Key manually held down on the hand controller to get Southern Hemisphere RA direction !
If you can afford the Tak and a upgraded Hand controller - it will be comparable in ease of use and better in its precision, if not the Losmandy represents good value for money.
Hope that helps
Rally
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