This is a pretty solid slide for electric and acoustic guitars. I have never tried it with a lap steel, as I don't really play those. I'm not sure you even would play one of those with this type of slide. Anyway, this is the slide that brought me back to glass. I've had many glass slides shatter on me throughout the years, and eventually got really frustrated with it. So I decided to cave and buy the metal. Then I stopped playing slide because I didn't like my tone. Therefore, I think that I prefer glass slides in general. However, sometimes, they can be weak and unforgiving. Not this one. This slide has one of the warmer, clearer tones that I've encountered. It tends to avoid highlighting the abrasive signals that sometimes get amplified with slide playing. I tend to use it more for my acoustic guitar, which sounds terrible with a metal slide. However, the electric guitars I've tried it with sound great, though I get frustrated from having to reset the action sometimes. It's just great for highlighting the middle range as opposed to the higher range. Since I use guitars that are generally pretty bright, I think that this helps balance it out a little better. I doubt anyone would want a slide that emphasizes the highs more than this one. It also fits me well, and I've never heard anyone encounter a problem with the comfortability of it. Overall, I prefer it to most glass slides, and I'm fortunate enough to have not broken it yet. Even if I do though, I wouldn't mind, considering that it's not that expensive to get replaced. If you want a good glass slide, this is one of the better ones I've found that weren't custom-made or unnecessarily expensive.
The Dunlop 202 is a glass bottleneck slide that is designed for use with electric and acoustic guitars. This is probably my favorite glass slide that Dunlop has to offer as it gets the job done in all ways. It has a great sound and is definitely a comfortable fit granted that you get the size that will work best for you. It is made of a sturdy material that would be pretty hard to break even if you wanted to. I can't say that I have any complaints about this slide at all as I use it all the time with both my Martin acoustic guitar and my Fender Strat electric with great results. While I would recommend using this for normal dreadnought acoustic guitars, I would probably recommend going with a metal slide if you are going to be playing in an open tuning or with a dobro style guitar as this is my personal preference in terms of tone as the glass and the metal slides definitely have their own distinct sounds. I personally have a number of slides including this and a metal one that I will use in different situations as they can both evoke different sounding tones. However, I would probably recommend going with a glass slide like this if you are getting your first slide as to me they are the better sounding overall of the two. The Dunlop 202 is overall a very well made slide from a company that definitely has experience and knows exactly what they are doing. The price very cheap and even if you don't end up liking this style of slide, it isn't a big loss at all because of this cheap price. I definitely vouch for the feel and sound of the Dunlop 202 bottleneck slide.