Depends on what you are really looking for in terms of ease of use, how much meat at same time, etc.
I have been using a small CookShack model for almost 15 years now. Up to 20 pounds of meat, plenty enough for us, and the unit is small enough not to be obtrusive. Yes, electric, and yes, been used in many commercial kitchens as well as on pro smoking circuit, WITH GREAT RESULTS. Its a set and forget type, add wood chunks of your choice, set the temp and walk away. The only “con” for me, so far, is that it only goes up to 250F, so really a smoker and slow cooker, and at times I do want to go to higher temps (whole chicken or duck). Forces to smoke/cook for a longer time, but that’s it. Can’t think of any other negatives, well, save for requiring an electrical outlet
That said, and wanting at times higher temps, been looking at wood pellets fed smokers. Key to them, and pretty much the Acchiles Foot, is the electronic unit that controls the temps. Found only 2 companies that provide a solid one, as well as great overall build (metal quality, etc). One is RecTec, and the other one is Yoder. RecTec is about half the price, body made in China (though of great quality components) and electronic control unit made in USA. Yoder is made in Texas, incredible in all respects, a heavy duty unit for the long haul. Price independent Yoder is the way to go, especially if one doesn’t want Chinese made. Price dependent, RecTec is it. The only other one I’d consider, having a good quality control unit, solid but still not up to par with these two, is a Nevada made Green Mountain Grills, and the price is right as well. Most others are a crap shoot not delivering a peace of mind.
For wood only type smokers, be aware that unless you go for some higher end model with higher build tolerances most of them leak smoke like crazy. You can buy one for under $300, I like vertical main boxes, but first thing you’ll need to do is apply sealing tape and such, and replace it probably once a year. Not an issue, really, should take you an hour, or two, and a beverage of choice to complete They also need a more hands on approach when smoking, checking/adjusting temp, adding more wood, etc.
So, depends, really, on what is the preferred cooking experience. Ease of use, set and walk away is for electrical units. Wood only requires more hands on. And pellet fed are in the middle on this scale.