Just wanted to throw my 2 cents in on the T150 and offer my own brief comparison to the G29.
I much prefer the T150 vs. the G29, which kind of surprised me as I've always preferred Logitech wheels to any of its competitors. Here's why:
I've pretty much been out of sim racing for the most part for the past 3+ years. Have 2 jobs now and just don't have much time to play anymore. But, I finally got the bug again and got a PS4, and sold my G27 (wrongly thinking that it wouldn't work on PS4 games). Used the money from the G27 to get a T150 after debating between it and the T300RS.
Used the T150 on PCars and liked it a lot, but didn't like the pedals. They're a little better than DFGT pedals, but just barely. So, I went and got the T3PA Pro pedals, and they're absolutely awesome. Throttle is great, and the conical brake mod is the best one I've used yet, by far, and I've used Fanatec Clubsport load cell pedals, and Nixim-modded G27 brakes and like the T3PA conical mod much better.
So, long story short, a friend of mine who wanted to get into sim-racing decided to sell me his G29 for a really, really cheap price after buying it and not liking sim racing. I took down my T150/T3PA Pro and put the G29 on my rig and tested it in PCars and Assetto Corsa.
The result was that I really, really did not like the G29 or the pedals that come with it, especially in comparison to the T150/T3PA Pro setup. The infamous "dead zone" that has always been in Logitech wheels was really bad with the G29. I would go as far as to say there was about a 30-40 degree deadzone in the center of the wheel. I had to turn the FFB up to 100% in AC and it barely helped with the deadzone at all. The G29's FFB doesn't have nearly the amount of detail and precision that the T150 has, which I didn't realize fully until I was able to compare the two. And another problem with the G29 is that even with the added pressure sensitive brake, the G29 pedals are still nowhere near as good as the T3PA Pro pedals. After switching back to the T3PA Pro pedals/T150 yesterday, I was immediately, and easily, more consistent and faster overall than I was with the G29.
I'm usually the type of person who has a hard time making a decision, but it's really clear for me that the T150/T3PA Pro pedal combo is the much better setup than the G29. The FFB that the T150 offers is so much smoother, more detailed, and more consistent than the G29. It's really impressive how good the FFB is in the T150 vs. the G29, and I've been one of Logitech's biggest fans in the past, but can't recommend the G29 now. I've never been a fan of too much/too strong FFB. I think generally it slows you down in the long run. As I said, I had to run 100% FFB on the G29 in AC, and it was still weak and sloppy compared to the T150, which I have been running at 40% in AC by comparison.
If pressed, I would even choose the stock pedal setup on the T150, rather than go with the G29 and it's stock pedals, even though they are better than the T150 stock pedals. That's how much I prefer the T150 wheel over the G29. The T150 has the best FFB I've ever experienced in a wheel, easily. I've used a G25, DFGT, G27, G29 and a Fanatec GT3RS wheel in the past, and the T150 is my favorite of them all.
My sole complaint about the T150 is that the rim is slightly smaller than the G29 and other wheels I've used before. It takes a little while to get used to, but once you do it's not a big deal, or at least I don't find it to be. I also like the overall feel of the wheel. The rubber grips work really well IMO and feel good overall. It also runs very quietly and doesn't produce any heat, that I can detect. The G29 gets noticeably warm to the touch, just like it's predecessors.
The T150 has been so good, I'm now tempted to sell the G29 and use the money to get a T300 and try it out, as the consensus seems to be that it's even better than the T150. If it is, I'll be very impressed.
Again, just my thoughts on these two wheels. Maybe it will help someone out who's deciding between these two but can't test them out before buying. I was just lucky to be able to get a chance to compare the two. If you're thinking about buying the T150, I would highly recommend getting at least the T3PA pedals to go with it. That would put you out about $300, which is basically the same price as the G29. The pedals are the only weakness on the T150 that I can see.
So far, the T150 has been running great for me, no issues whatsoever. I've only been using it a couple of months, but still. No worries so far. Really impressed with it overall, especially for the price.