The answer is an unequivocal YES! If you have never used an oscillating multi-tool you are missing out on one of life's great pleasures. The uses one can find for a multi-tool seemingly stretch to the bounds of one's own imagination. This versatility, along with a myriad of blades, gives the multi-tool the ability to do almost anything or at least it seems that way. This is one of those tools that once you have one you cannot imagine ever doing without it again.
With a variety of saw blades the multi-tool can cut wood, metal, nail embedded wood, pipe, and pretty much anything else that can be cut. With the right blade the multi-tool works great as a jamb saw, a necessity when installing new flooring. And when it comes to plunge cutting the multi-tool cannot be beat. It allows you to plunge cut from point-to-point without over cuts, common with other types of saws.
By attaching a scraping blade the multi-tool becomes a power scraper. For those of you who have ever been on your hands and knees scraping up linoleum, old adhesive, etc. you know how tedious hand scraping is making the multi-tool a great labor saver. And when the scraping becomes difficult a simple switch to a carbide rasp blade allows one to grind the surface free of stubborn adhesive. The carbide rasp blade also allows for aggressive removal of wood or surface grinding of mortar and thin set.
Enter the bathroom. Do you need to replace a tile? If you do there are carbide grout blades to remove the grout between the tiles to facilitate the removal of the damaged tile. Once the tile is removed a little scraping or grinding (see previous paragraph) and you are ready to replace the tile. Do you need to replace a tile that had been cut to fit, no worry, simply install a diamond blade and cut the tile to fit, no need to break out the tile saw or run to the rental place to rent a tile saw.
And then there is sanding and polishing. Oscillating multi-tools offer various types of sanding pad attachments from round to triangular to 'finger' shaped, each of which is provided with a range of available sanding grits. Some multi-tools offer a detail sanding attachment that comes with an assortment of differently shaped profiles allowing you to sand a multitude of different shapes. With felt polishing pads the multi-tool becomes a power polisher capable of reaching into tight places where an orbital polisher cannot go.
If you think an oscillating multi-tool is a budget buster you would be wrong. Although there are models that cost in excess of $800 there are also models that cost less than $100. Multi-tools can be found in both corded and cordless models, expanding their versatility. Although blades can be pricey, especially if buying major brand-name blades, aftermarket producers provide a wide range of reasonably priced blades. Additionally, most all blades are designed so as to fit all manufacturer's oscillating multi-tools. With all this versatility can one not want an oscillating multi-tool.