THe new Lionel defect Detector looks pretty neat. I just wish they would make these things without making us use the piece of Fastrack. I suppose it does make the installation very easy for Fastrack users and I do see their logic behind that. But, for those of us using another track type it's just a little more difficult to use. However, it does look like a really neat product and is definitely worth a closer look.
The Boulder Creek Engineering product comes with no track and they also have some other really neat products as well. Probably does more and is more configurable, but I imagine it's also a bit more difficult to install. Probably for the more advanced users? I have looked at the BCE detectors before as well as some of their other products. They have some very nice stuff.
I think it's great to have more choices with all the O gauge product offerings we have today. Good for the hobby too! Especially the easy install items to help those new to the hobby. Something for everyone!!