The Emotiva B1's are bit smaller than many other 5.25 inch bookshelf speakers, but their compact size eases need for extra desk real estate that the HTD Level 2, Polk S15 or the ELAC B5 need. The Emotiva line has a great industrial look to them, beveled edges and corners, and leather like texture on the vinyl wrap which makes a for nice change of pace over wood grain. The contoured magnetic grills and internal bracing are a welcome additions at this price point. As an internet direct vendor, Emotiva is able to offer a lot of speaker for the money.
The more reviews I do, the harder it is to balance being repetitive with praise (I haven't had a objectively bad speaker in a while either) and trying to avoid fluffy nonsense "audiophile" terms pulled from 6moons.
The long and short of it is that these are very fine speakers. Their small enclosure and relatively high tuning does mean that they aren't going to be bass monsters. In the nearfield my previous desktop set of KEF q100s do dig deeper, that isn't to say the Emotiva B1s are unusable or anemic; and some reinforcement from the wall does help. But if you are likely to never pair them with a subwoofer, then you might want to consider other options. What the Emotiva may sacrifice in bass, it makes up for in every other category. For myself, the B1s will be replacing the q100s for the foreseeable future. The B1s are sized better, actually had a higher WAF for me, the tweeter really is "light and airy" and they are a touch smoother (don't have the same elevated treble) without being dull in anyway.
In my side be side AB testing between the Emotiva B1 and the KEF q100, they often were remarkably similar sounding. The KEFs act as point source with great off axis response, dig deeper, but are noticeably brighter, so if something smoother is your cup of tea the Emotiva prevail there. I think the midrange might even be better on the Emotivas, with almost no cone break up and steeper crossovers (shoot, an actual crossover really). This review wasn't intended to be a shootout, but if the q100s were not so often found for $300 and rather than their normal $500 MSRP, it would be really hard to justify the additional cost.
Put them on your short list, and if you intend pair them with a subwoofer you'll be hard pressed to do better.