Tim,
I would be happy to give you a quick blurb here but I think you really need to seek out other info that is more detailed.
The Socata.org website is good. Also there is a book on the TB series available on amazon.com just search for "SOCATA" and you will see it.
Or use this link:
http://www.amazon.com/Flying-SOCATA-Trinidad-Tobago-Tampico/dp/1477407766/ref=sr_1_1?ie=UTF8&qid=1386186230&sr=8-1&keywords=socataNote: I will be up front and tell you, I wrote this book for people searching for real information about TBs.
Comments here refer only to the TB 20 Trinidad (not that the other planes may not share their characteristics, it is just they are all a little different. No more so than all Bo's being alike; nor are the TBs)
I will tell you the items, some may be good, some may be bad, you decide for your needs and mission.
Airframe: Mostly Aluminum airframe
Solid well-built to high standards (good fit and finish)
Spar is milled aluminum alloy from single piece. Note one for each wing. Very strong.
Most fasteners are metric in size.
Brakes, engine, avionics, etc. parts are US vendors
2 Gull wing doors
Vertical Stabilizer & large rudder forward of Horizontal Stabilator
Lots of windows
Baggage door is odd shape for many; on G1 it is smaller than on GT
No control cables - push pull rods (only Stabilator trim is a cable)
Not as many STC's as some large population planes
Power plant: Lycoming IO-540, rated at only 250 HP (others get 300 or more HP out of it)
Mags use single shaft, some other aircraft do as well (no issues I have heard of)
Interior: More auto like than many airplanes
Wide cabin
Head room G1 front seat - I am 6'2" and fit in front seat of G1.
Head room GT front seat no issue.
Rear seats same width as front seats.
Rear Seat Headroom - G1 it can be an issue, GT resolved issue.
Certified for 5; But due to space at least one needs to be a child or small.
Flight Characteristics: About 150 -155 KTS cruise. POH has details on what an antennas cost you in KTS.
Gentle stall characteristics (no wing drop on any I have flown)
25 KTS demonstrated cross wind capability
Stable IFR Platform
Excellent rate of climb
High wing loading (means smoother ride in bumps but less glide distance)
Big Flaps
Vendor Support: Almost all parts (if not all) available from SOCATA
Price for parts appears not much different than other vendors
Excellent worldwide user group
Maintenance: IPC and MM are available FREE from SOCATA and also user group
Any A&P can work on these planes
A&P may have to read a little, but not much and it is in English
The IPC/MM/POH seems easy to read to me, some people have issues (why?)
The manuals have an occasional word that did not convert from French well.
True World Wide Support
All engine parts Lycoming
Airframe parts from SOCATA.
Airframe parts have the SOCATA Part Number, some parts also have the generic part numbers - parts in USA are ordered through regional dealer. That dealer stocks parts, if they don't have it they get it from Florida warehouse. If Florida does not have part it then comes from France. I have had a few parts come from France. They were here within a week without any special request for fast shipping.
Looks: Depends what you think an airplane should look like, many people think it looks great
Most places you land you will get at least one person come over and want to talk.
Versions: G1 and GT - G1 is from 1983-1999 (s/n under 2000). Starting in year 2000 GT was added and has a couple fixes to airframe. Fix 1 - higher cabin roof, front and back seat have more head room, Fix - larger baggage door, Fix 3 - other misc. items like wing tips, retractable steps etc.
That is about as quick as I can make it, if you are interested in a TB or Mooney or a whatever, please go to the other sites so they can balance out what is said. And I don't think anyone means to give misleading info, it is simply they think their brand is best.
Bill