I can recommend both Windcheetahs - had one now for 10 years - and AVD for service above and beyond...
There are quite a few people on the forum with both recumbent bikes and trikes, indeed I was one of them until a few months ago when I sold the bike (HPV Speedmachine) to fund a new upright - so I'm not a terminal darksider
There are pros and cons, as others have said, but my take is that a recumbent bike is more like upright road bikes in terms of when I ride it - for fun, fast day rides. But the trike is both workhorse as I have a rear rack permanently mounted for the tail box so it's a 30 second job to add the big panniers too for shopping etc. (but the tail box is big enough alone for a errand run where I'd have to use a rucksac on an upright) and tourer par excellence. It's also a great fun day ride in it's own right but I'm more likely to take the road bike for a ride if I don't need to car anything. Although I bought it when back problems limited my upright cycling, and these have been largely sorted, I think I'll probably keep the Windcheetah till death as I can see that in one's old age having three wheels with be a big advantage.
In winter, of course, trikes really come into their own on snow and ice
Last winter I mounted a knobbly mtb tyre on the back wheel (haven't found similar for the front wheels yet) and rode the uncleared lanes of South Lakes taking advantage of the pretty spectacular conditions in December and January. Although I did use a mtb similarly equipped with knobblies, it wasn't fun in the same way as there was always the chance of an unexpected fall.
Another advantage which is partly specific to the geometry of the Windcheetah is maintenance - particularly the chain. Because the 'cheetah rear wheel is offset from the chain line, you don't get the amount of road dirt and water sprayed off the road onto the chain and, of course, there's nothing from the front wheels, as on any tadpole trike. So the chain stays cleaner and lasts longer (partly also due to the longer length - wear per link is reduced pro rata with increased length) than on bikes. The drum brakes on the 'cheetah are also close to maintenance free - about once a year I take the front wheels off to check them but it's more of a habit than a necessity as I've never done anything besides give the drum a quick wipe with a dry rag. Currently we're up to more than 50,000km (I haven't had a speedo on for most of it's life so this is based on mileages for routes measured on other bikes and estimates for long tours but it's likely an underestimate as I've never included all the shopping/utility trips that I use it for) and I've yet to replace anything other than components damaged in a couple of accidents.
While I enjoyed the Speedmachine - it is absolutely fabulous downhills, feeling more solid the faster you go so that at >100kmph you're practically stuck to the road - it never really engaged me in the same way as the Windcheetah. Nor did it really fit me. We tend to gloss over fit with respect to recumbents, considering only whether the reach to the pedals is correct and whether you can easily put a foot down but the relative length of upper and lower leg and hip - knee - ankle positions can be important factors in whether you can cycle efficiently. With recumbents, the bottom bracket position is usually fixed relative to the seat for a specific leg length, unlike an upright where you can vary the saddle fore and aft to get the best position for your physiology over the pedals. This means that for some 'bent geometries, you'll not get an efficient pedalling position. This was the case with me and the Speedmachine and I reckon it cost me about 10% of my power output compared to the near perfect position on the Windcheetah. So something to bear in mind if you're interested in speed either on the flat or uphill.
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and try to scrounge a ride 
foucalt and 
to CycleChat 
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